hypnotic suggestion as a technique charles t. ta.rt la ... · hypnotic suggestion as a technique...

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Hypnotic Suggestion as a Technique for the Control of Drea.ming 1 Charles T. Ta.rt La.bora.tory of Human Development, Stanford University Scientific resea.rch is carried out with two ba.sic kinds of procedures. One 1 :. is the observa.tiona.1 or correla.tiona1 approa.ch, where we observe "wha.t happens 'I natura.llyWand try to make sense out of it by finding relations or correlations between various a.spects of our observations. This a.pproach 1ea.d~ to statements of the order, "..,.subjects classified a.s Sensitizers report reca.lling dreaming significa.ntly more frequently than those classified a.s Repressors" on the MMPI (Tart, 1962a). The other a.pproach i s the functional method, where we a.ctively ma.nipula.te one factor or va.ria.ble and note the effect on some dependent variable. This approach leads to statements of the order, "A large dose of alcohol reduces the amount of EEG stage 1 - REM time a.nd inferred dreaming i n norma.1 2s. ...'I (Gresham e t a.l., 1963). Both a.pproaches a.re used in most fields of science, as they complement one another. Dream research, on the other ha.nd, ha.s been a.lmost exclusively a matter of correlational research, ignoring, for the moment, the last decade's resea.rch I Presented in a symposium on "New Frontiers in Dream Research," America.n Psychologica.1 Association Seventy-second Annual Convention, Los Angeles, September 5, 1964,

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Hypnot ic Sugges t ion a s a Technique

f o r t h e Cont ro l of Dreaming1

C h a r l e s T Tar t

Laboratory o f Human Development

S t a n f o r d U n i v e r s i t y

S c i e n t i f i c resea rch i s c a r r i e d o u t w i t h two ba s ic k i n d s o f p rocedures One 1 i s t h e observat iona1 o r c o r r e l a t i o n a 1 approach where we o b s e r v e what happens

I

n a t u r a l l y W and t r y t o make s e n s e o u t of i t by f i n d i n g r e l a t i o n s o r c o r r e l a t i o n s

between v a r i o u s a spec t s o f our o b s e r v a t i o n s T h i s approach 1 e a d ~ t o s t a t e m e n t s

of t h e o r d e r subjects c l a s s i f i e d as S e n s i t i z e r s r e p o r t r e c a l l i n g dreaming

s i g n i f i c a n t l y more f r e q u e n t l y t h a n t h o s e c l a s s i f i e d as Repressors on t h e MMPI

( T a r t 1962a) The o t h e r approach i s t h e f u n c t i o n a l method where we a c t i v e l y

manipulate one f a c t o r o r va r ia b le and n o t e t h e e f f e c t on some dependent v a r i a b l e

T h i s approach l e a d s t o s t a t e m e n t s of t h e o r d e r A l a r g e dose o f a l c o h o l r e d u c e s

t h e amount of EEG s t a g e 1 - REM t ime and i n f e r r e d dreaming i n norma1 2s I

(Gresham e t al 1963) Both approaches are used i n most f i e l d s of s c i e n c e a s

t h e y complement one a n o t h e r

Dream r e s e a r c h on t h e o t h e r hand has been almost e x c l u s i v e l y a m a t t e r of

c o r r e l a t i o n a l r e s e a r c h i g n o r i n g f o r t h e moment t h e l a s t d e c a d e s resea rch

I P r e s e n t e d i n a symposium on New F r o n t i e r s i n Dream Research American Psychologica1 A s s o c i a t i o n Seventy-second Annual Convention Los Angeles September 5 1964

2 -

u s i n g t h e EK (e lect roencephalogra ph) and r a p i d eye movement (REM) techn ique

R e s e a r c h e r s asked s u b j e c t s (Ss) how o f t e n t h e y dreamed i n c o l o r whether t h e i r -

dreams were main ly p l e a s a n t o r u n p l e a s a n t and t h e l i k e and t h e n a t t e m p t e d t o

c o r r e l a t e t h e s e obse rved c h a r a c t e r i s t i c s w i t h p e r s o n a l i t y t r a i t s i n t e l l i g e n c e

age e t c O r t h e p a t i e n t b rough t i n a spontaneous dream and t h e t h e r a p i s t -

r e s e a r c h e r a t t e m p t e d t o i n t e r p r e t i t i n t h e l i g h t of what h e knew a b o u t t h e

p a t i e n t

We have o f c o u r s e l e a r n e d a g r e a t dea1 about t h e na ture o f n o c t u r n a l

dreaming a s a r e s u l t of c o r r e l a t i o n a 1 s t u d i e s and I have no doubt t h a t we w i l l

c o n t i n u e t o l e a r n a g r e a t d e a l from them I f w e c o u l d supplement c o r r e l a t i o n a l

s t u d i e s w i t h f u n c t i o n a l s t u d i e s however we cou ld p robab ly p r o g r e s s a good

dea1 f a s t e r i n o u r u n d e r s t a n d i n g of dreaming What I would l i k e t o d i s c u s s w i t h

you today a r e some a t t e m p t s o f mine t o deve lop h y p n o t i c s u g g e s t i o n o r more

p r e c i s e l y p o s t h y p n o t i c s u g g e s t i o n as a powerful and p r e c i s e t e c h n i q u e which

would a l l o w f u n c t i o n a l s t u d i e s of dreaming and s i n c e t h i s i s a symposium on

New F r o n t i e r s i n Dream Research engage i n some s p e c u l a t i o n abou t t h e u s e f u l n e s s

o f such a t e c h n i q u e and where i t might l e a d us

I w i l l l i m i t myself today by r e a s o n of t ime l i m i t a t i o n s t o s t a g e 1 noc-

t u r n a l dreaming and n o t c o n s i d e r s o - c a l l e d dreams o c c u r r i n g i n a h y p n o t i c s t a t e

( a l t h o u g h I am working e x t e n s i v e l y w i t h them) nor d reaml ike e x p e r i e n c e s i n o t h e r

s t a t e s o f c o n s c i o u s n e s s nor t h e t y p e o f th ink ing t h a t seems t o go on i n t h e

o t h e r s t a g e s of s l e e p The ba s ic t h e o r e t i c a l a s sumpt ion I have made u n d e r l y i n g

my d i s u c s s i o n i s t h a t a n e x p e r i e n t i a l l y d i s t i n c t i v e t y p e o f menta l a c t i v i t y

o c c u r s d u r i n g s t a g e 1 s l e e p (whether r e c a l l e d o r n o t ) and t h i s a c t i v i t y i s what

we c u s t o m a r i l y t h i n k o f dreaming

3

There are two conven ien t c a t e g o r i e s under which a t tempts t o i n f l u e n c e s t a g e

1 dreaming cam b e subsumed One i s a t t e m p t s t o i n f l u e n c e t h e c o n t e n t o f dream-

i n g what i s dreamed about The second i s t h e p r o c e s s o f dreaming indepen-

den t of t h e p a r t i c u l a r c o n t e n t by which i s meant t h e s t a r t i n g and s t o p p i n g

o f dreaming i t s dura t ion i t s cyc l i ca 1 n a t u r e and t h e menta1 and p h y s i o l o g i -

ca1 p r o c e s s e s which comprise and accompany i t Thus i n t h e f i r s t case you may

a t t e m p t t o have your -S dream abou t d r i v i n g a r e d c o n v e r t i b l e w h i l e i n t h e second

you might t r y t o have him b e g i n s t a g e 1 dreaming immediately a f t e r f a l l i n g a s l eep

i n s t e a d of t h e u s u a l 90 m i n u t e s l a t e r

There have been a number of s t u d i e s i n t h e p a s t decade u s i n g t h e EEG and

REM t e c h n i q u e t o i n f l u e n c e t h e p r o c e s s and t o some e x t e n t t h e c o n t e n t o f

s t a g e 1 dreaming Most famous perhaps i s Dements dream d e p r i v a t i o n t e c h n i q u e

(Dement 1 9 6 0 ) where t h e -S i s e v e r y t ime h e b e g i n s s t a ge 1 dreaming

O t h e r s have worked w i t h t o t a l s l e e p d e p r i v a t i o n ( s e e e g Berger amp Oswald 1962)

West e t al 1962) p r e s e n t i n g s t i m u l i t o dreaming -Ss (Dement amp Wolper t 1958)

socia1 i s o l a t i o n (Wood 1 9 6 2 ) and v a r i o u s d rugs such as alcoho1 c a f f e i n e

(Gresham e t a l 1963) and amphetamine ( R e c h t s c h a l f e n amp Maron 1964) So t h e

q u e s t i o n a r i s e s Why t r y hypnos i s

The main reason i s tha t h y p n o t i c s u g g e s t i o n judg ing by some e a r l i e r l i t e r a -

t u r e o f f e r e d a hope of a much more p r e c i s e t y p e of c o n t r o l than t h e s e o t h e r

v a r i a b l e s a11 o f which t e n d e i t h e r t o d i s r u p t t h e s leep-dream c y c l e comple te ly

o r t o have r a t h e r m n s p e c i f i c e f f e c t s It should b e emphasized though tha t

h y p n o s i s i s n o t t h e o n l y p s y c h o l o g i c a l t e c h n i q u e which might b e u s e f u l f o r af-

f e c t i n g dreaming and c e r t a i n l y many o f t h e e f f e c t s which are cus tomar i ly p ro -

duced by h y p n o t i c s u g g e s t i o n cam probably b e produced t o some e x t e n t and w i t h

some Ss w i t h o u t i t But hypnos i s i s known t o b e a powerful p s y c h o l o g i c a l t e c h -

n i q u e which i s f a i r l y e a s y and conven ien t t o u s e i n t h e la bora tory s o i t seemed

a good p l a c e t o s t a r t i n t h e search f o r a powerful and p r e c i s e p s y c h o l o g i c a l

t e c h n i q u e f o r a f f e c t i n g dreaming

H i s t o r i c a l Background

P r i o r t o 1961 almost a11 t h e l i t e r a t u r e on t h e e f f e c t s o f p o s t h y p n o t i c

s u g g e s t i o n on n o c t u r n a l dreaming c o n s i s t e d of s t u d i e s ca r r i ed o u t by psycho-

a n a l y s t s more f o r t h e purpose o f demonstra t ing Freudian p r i n c i p l e s than f o r

a n open o b s e r v a t i o n o f what happened na tu ra 11~ T h i s 1 i t e r a t u r e a11 p u r p o r t e d

t o show t h a t some -Ss would dream at n i g h t i n accordance w i t h t h e p o s t h y p n o t i c

s u g g e s t i o n s g i v e n t h e m and tha t most of t h e dreams d i s t o r t e d t h e s e s u g g e s t i o n s

i n accordance w i t h F r e u d i a n p r i n c i p l e s of d i s g u i s e d i sp lacement e t c

B e s i d e s be ing r a t h e r anecdota1 t h i s l i t e r a t u r e s u f f e r s f rom t h e drawback tha t

a11 t h e dreams r e p o r t e d might have o c c u r r e d i n a h y p n o t i c s t a t e at n i g h t

r a t h e r than b e i n g s t a g e 1 dreams There had been no EEG r e c o r d i n g Indeed

S c h i f f Bunney amp Freedman (1961) u s i n g EEG m o n i t o r i n g r e p o r t e d tha t when t h e y

gave a p o s t h y p n o t i c s u g g e s t i o n t o dream abou t a c e r t a i n t o p i c d u r i n g s l e e p t o

t h e i r -S s h e a c t u a l l y dreamedt i n a h y p n o t i c s t a t e a l though s h e though t i t

was d u r i n g s l e e p Thus t h e b e s t c o n c l u s i o n tha t cou ld b e drawn i n 1961 was tha t

p o s t h y p n o t i c s u g g e s t i o n might i n f l u e n c e s t a ge 1 dreaming b u t t h e r e was no p roof

o f i t The o t h e r r e s u l t s r e p o r t e d i n t h e s e p s y c h o a n a l y t i c a l l y o r i e n t e d s t u d i e s

might a p p l y o n l y t o h y p n o t i c dreams and a r e of dub ious v a l i d i t y anyway f o r a

v a r i e t y of o t h e r reasons ( d i s c u s s e d more f u l l y i n T a r t 1962b T a r t unpub l i shed

ms)

5

S h o r t l y a f t e r I had begun working w i t h p o s t h y p n o t i c s u g g e s t i o n t o i n -

f l u e n c e s t a g e 1 dreaming l a t e i n 1961 I d i scovered that t h e ba s ic q u e s t i o n of

whether i t would work a t a l l had been answered i n a p i o n e e r i n g d i s s e r t a t i o n

completed t h a t y e a r by Johann Stoyva a t t h e U n i v e r s i t y o f Chicago Stoyva

(1961) showed t h a t p o s t h y p n o t i c s u g g e s t i o n cou ld f o r some Ss markedly i n f l u -

ence t h e c o n t e n t of t h e i r s t a g e 1 dreams He would s u g g e s t e g tha t t h e y

dream about c l imbing a t r e e and t h e s e -Ss would r e p o r t tha t t h e y were dreaming

about c l imbing a t r e e when awakened from s t a g e 1 dreaming There was cons ider -

able v a r i a t i o n from -S t o -S i n t h e e x t e n t t o which t h e i r r e p o r t e d dreams were

i n f l u e n c e d by t h e s u g g e s t i o n s o f course b u t t h i s work w a s t h e f i r s t c o n c r e t e

i l l u s t r a t i o n o f t h e promise o f p o s t h y p n o t i c s u g g e s t i o n as a powerful and p re -

c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming

A f f e c t i n g Dream Content

I n t h e fa l l of 1961 I c a r r i e d o u t a s t u d y des igned t o compare r e s p o n s e s t o

h y p n o t i c s u g g e s t i o n s t o dream about s p e c i f i e d t o p i c s d u r i n g hypnos i s t o responses

2t o p o s t h y p n o t i c s u g g e s t i o n s t o dream about t h e same o r s i m i l a r t o p i c s d u r i n g

s t a g e 1 s l e e p T h i s d e s i g n a l s o t e s t e d t h e e x t e n t t o which p o s t h y p n o t i c sug-

g e s t i o n could a f f e c t s t a g e 1 dreaming which i s our pr imary i n t e r e s t today

Ten -S s were s e l e c t e d from a much l a r g e r group of s t u d e n t s by means o f sug-

g e s t i b i l i t y tests and t r a i n e d t o r e a c h a deep h y p n o t i c s t a t e Each -S t h e n par -

t i c i p a t e d i n two i n d i v i d u a l exper imenta l s e s s i o n s I n t h e one of i n t e r e s t to -

2 There were a c t u a l l y two equa ted n a r r a t i v e s used i n counterbalanced o r d e r s b u t i n t e rms o f our i n t e r e s t s today and t h e r e s u l t s i t w i l l b e s impler t o speak as i f t h e y were a s i n g l e s t i m u l u s n a r r a t i v e

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day h e was hypno t ized and t o l d t o dream d u r i n g h i s natura1 s l e e p t h a t n i g h t

about a n a r r a t i v e which was immediate ly p l a y e d on a t a p e r e c o r d e r The n a r r a -

t i v e p l a c e d t h e -S i n a t h r e a t e n i n g s i t u a t i o n which evoked a r e a l i s t i c fear of

b o d i l y i n j u r y o r death It was emphasized tha t h e would dream about t h e

s t i m u l u s n a r r a t i v e i n h i s n a t u r a l s l e e p tha t n i g h t and -n o t i n a h y p n o t i c s t a t e

i n f a c t amnesia f o r t h e whole h y p n o t i c s e s s i o n was sugges ted No s u g g e s t i o n s

t o d i s g u i s e t h e dream about t h e s t i m u l u s n a r r a t i v e were g i v e n e x p l i c i t l y o r

i m p l i c i t l y The -S was t h e n dehypnot ized and s l e p t i n t h e 1ab f o r t h e n i g h t

Whenever h i s EEG and REM p a t t e r n s i n d i c a t e d s t a g e 1 dreaming i t was a l lowed t o

go on f o r a few m i n u t e s and t h e n h e wasawakened f o r a dream r e p o r t A r e l i a b l e

method f o r judg ing how w e l l t h e r e p o r t e d dreams conformed t o t h e s t i m u l u s n a r r a -

t i v e i n d e t a i l was worked o u t ( j u d g e s c o r r e l a t e d 99 w i t h each o t h e r ) and a l l

t h e s e dreams s c o r e d on i t

For f i v e of t h e t e n Ss n o t a s i n g l e e lement i n t h e i r r e p o r t e d s ta ge 1

dreams corresponded d i r e c t l y t o a n y t h i n g i n t h e s t i m u l u s n a r r a t i v e nor d i d any

of t h e s e dreams appear t o b e d i s g u i s e d o r d i s t o r t e d v e r s i o n s of t h e s t i m u l u s

n a r r a t i v e Th i s i s a moot p o i n t o f c o u r s e as no f r e e a s s o c i a t i o n s were ob-

t a i n e d from t h e -Ss and t h e dreams may have been so thorough ly d i s g u i s e d t h a t I

c o u l d n t s e e t h e connec t ion But i f t h i s was t h e c a s e i t i s a t y p i c a l compared

t o t h e e a r l i e r p s y c h o a n a l y t i c r e p o r t s i n which t h e s o p h i s t i c a t e d r e a d e r cou ld

s e e a c o n n e c t i o n between t h e d i sgu i sed dreams and t h e s t i m u l u s n a r r a t i v e s even

w i t h o u t t h e b e n e f i t of t h e f r e e a s s o c i a t i o n s Thus f o r h a l f t h e -Ss I concluded

t h a t t h e s u g g e s t i o n s had f a i l e d t o a f f e c t t h e i r s t a g e 1 dreaming

The o t h e r f i v e -Ss dreams were a f f e c t e d ranging from a minimal e f f e c t o f

two e l e m e n t s o f t h e 23 i n t h e s t i m u l u s n a r r a t i v e a p p e a r i n g i n a r e p o r t e d dream

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

2 -

u s i n g t h e EK (e lect roencephalogra ph) and r a p i d eye movement (REM) techn ique

R e s e a r c h e r s asked s u b j e c t s (Ss) how o f t e n t h e y dreamed i n c o l o r whether t h e i r -

dreams were main ly p l e a s a n t o r u n p l e a s a n t and t h e l i k e and t h e n a t t e m p t e d t o

c o r r e l a t e t h e s e obse rved c h a r a c t e r i s t i c s w i t h p e r s o n a l i t y t r a i t s i n t e l l i g e n c e

age e t c O r t h e p a t i e n t b rough t i n a spontaneous dream and t h e t h e r a p i s t -

r e s e a r c h e r a t t e m p t e d t o i n t e r p r e t i t i n t h e l i g h t of what h e knew a b o u t t h e

p a t i e n t

We have o f c o u r s e l e a r n e d a g r e a t dea1 about t h e na ture o f n o c t u r n a l

dreaming a s a r e s u l t of c o r r e l a t i o n a 1 s t u d i e s and I have no doubt t h a t we w i l l

c o n t i n u e t o l e a r n a g r e a t d e a l from them I f w e c o u l d supplement c o r r e l a t i o n a l

s t u d i e s w i t h f u n c t i o n a l s t u d i e s however we cou ld p robab ly p r o g r e s s a good

dea1 f a s t e r i n o u r u n d e r s t a n d i n g of dreaming What I would l i k e t o d i s c u s s w i t h

you today a r e some a t t e m p t s o f mine t o deve lop h y p n o t i c s u g g e s t i o n o r more

p r e c i s e l y p o s t h y p n o t i c s u g g e s t i o n as a powerful and p r e c i s e t e c h n i q u e which

would a l l o w f u n c t i o n a l s t u d i e s of dreaming and s i n c e t h i s i s a symposium on

New F r o n t i e r s i n Dream Research engage i n some s p e c u l a t i o n abou t t h e u s e f u l n e s s

o f such a t e c h n i q u e and where i t might l e a d us

I w i l l l i m i t myself today by r e a s o n of t ime l i m i t a t i o n s t o s t a g e 1 noc-

t u r n a l dreaming and n o t c o n s i d e r s o - c a l l e d dreams o c c u r r i n g i n a h y p n o t i c s t a t e

( a l t h o u g h I am working e x t e n s i v e l y w i t h them) nor d reaml ike e x p e r i e n c e s i n o t h e r

s t a t e s o f c o n s c i o u s n e s s nor t h e t y p e o f th ink ing t h a t seems t o go on i n t h e

o t h e r s t a g e s of s l e e p The ba s ic t h e o r e t i c a l a s sumpt ion I have made u n d e r l y i n g

my d i s u c s s i o n i s t h a t a n e x p e r i e n t i a l l y d i s t i n c t i v e t y p e o f menta l a c t i v i t y

o c c u r s d u r i n g s t a g e 1 s l e e p (whether r e c a l l e d o r n o t ) and t h i s a c t i v i t y i s what

we c u s t o m a r i l y t h i n k o f dreaming

3

There are two conven ien t c a t e g o r i e s under which a t tempts t o i n f l u e n c e s t a g e

1 dreaming cam b e subsumed One i s a t t e m p t s t o i n f l u e n c e t h e c o n t e n t o f dream-

i n g what i s dreamed about The second i s t h e p r o c e s s o f dreaming indepen-

den t of t h e p a r t i c u l a r c o n t e n t by which i s meant t h e s t a r t i n g and s t o p p i n g

o f dreaming i t s dura t ion i t s cyc l i ca 1 n a t u r e and t h e menta1 and p h y s i o l o g i -

ca1 p r o c e s s e s which comprise and accompany i t Thus i n t h e f i r s t case you may

a t t e m p t t o have your -S dream abou t d r i v i n g a r e d c o n v e r t i b l e w h i l e i n t h e second

you might t r y t o have him b e g i n s t a g e 1 dreaming immediately a f t e r f a l l i n g a s l eep

i n s t e a d of t h e u s u a l 90 m i n u t e s l a t e r

There have been a number of s t u d i e s i n t h e p a s t decade u s i n g t h e EEG and

REM t e c h n i q u e t o i n f l u e n c e t h e p r o c e s s and t o some e x t e n t t h e c o n t e n t o f

s t a g e 1 dreaming Most famous perhaps i s Dements dream d e p r i v a t i o n t e c h n i q u e

(Dement 1 9 6 0 ) where t h e -S i s e v e r y t ime h e b e g i n s s t a ge 1 dreaming

O t h e r s have worked w i t h t o t a l s l e e p d e p r i v a t i o n ( s e e e g Berger amp Oswald 1962)

West e t al 1962) p r e s e n t i n g s t i m u l i t o dreaming -Ss (Dement amp Wolper t 1958)

socia1 i s o l a t i o n (Wood 1 9 6 2 ) and v a r i o u s d rugs such as alcoho1 c a f f e i n e

(Gresham e t a l 1963) and amphetamine ( R e c h t s c h a l f e n amp Maron 1964) So t h e

q u e s t i o n a r i s e s Why t r y hypnos i s

The main reason i s tha t h y p n o t i c s u g g e s t i o n judg ing by some e a r l i e r l i t e r a -

t u r e o f f e r e d a hope of a much more p r e c i s e t y p e of c o n t r o l than t h e s e o t h e r

v a r i a b l e s a11 o f which t e n d e i t h e r t o d i s r u p t t h e s leep-dream c y c l e comple te ly

o r t o have r a t h e r m n s p e c i f i c e f f e c t s It should b e emphasized though tha t

h y p n o s i s i s n o t t h e o n l y p s y c h o l o g i c a l t e c h n i q u e which might b e u s e f u l f o r af-

f e c t i n g dreaming and c e r t a i n l y many o f t h e e f f e c t s which are cus tomar i ly p ro -

duced by h y p n o t i c s u g g e s t i o n cam probably b e produced t o some e x t e n t and w i t h

some Ss w i t h o u t i t But hypnos i s i s known t o b e a powerful p s y c h o l o g i c a l t e c h -

n i q u e which i s f a i r l y e a s y and conven ien t t o u s e i n t h e la bora tory s o i t seemed

a good p l a c e t o s t a r t i n t h e search f o r a powerful and p r e c i s e p s y c h o l o g i c a l

t e c h n i q u e f o r a f f e c t i n g dreaming

H i s t o r i c a l Background

P r i o r t o 1961 almost a11 t h e l i t e r a t u r e on t h e e f f e c t s o f p o s t h y p n o t i c

s u g g e s t i o n on n o c t u r n a l dreaming c o n s i s t e d of s t u d i e s ca r r i ed o u t by psycho-

a n a l y s t s more f o r t h e purpose o f demonstra t ing Freudian p r i n c i p l e s than f o r

a n open o b s e r v a t i o n o f what happened na tu ra 11~ T h i s 1 i t e r a t u r e a11 p u r p o r t e d

t o show t h a t some -Ss would dream at n i g h t i n accordance w i t h t h e p o s t h y p n o t i c

s u g g e s t i o n s g i v e n t h e m and tha t most of t h e dreams d i s t o r t e d t h e s e s u g g e s t i o n s

i n accordance w i t h F r e u d i a n p r i n c i p l e s of d i s g u i s e d i sp lacement e t c

B e s i d e s be ing r a t h e r anecdota1 t h i s l i t e r a t u r e s u f f e r s f rom t h e drawback tha t

a11 t h e dreams r e p o r t e d might have o c c u r r e d i n a h y p n o t i c s t a t e at n i g h t

r a t h e r than b e i n g s t a g e 1 dreams There had been no EEG r e c o r d i n g Indeed

S c h i f f Bunney amp Freedman (1961) u s i n g EEG m o n i t o r i n g r e p o r t e d tha t when t h e y

gave a p o s t h y p n o t i c s u g g e s t i o n t o dream abou t a c e r t a i n t o p i c d u r i n g s l e e p t o

t h e i r -S s h e a c t u a l l y dreamedt i n a h y p n o t i c s t a t e a l though s h e though t i t

was d u r i n g s l e e p Thus t h e b e s t c o n c l u s i o n tha t cou ld b e drawn i n 1961 was tha t

p o s t h y p n o t i c s u g g e s t i o n might i n f l u e n c e s t a ge 1 dreaming b u t t h e r e was no p roof

o f i t The o t h e r r e s u l t s r e p o r t e d i n t h e s e p s y c h o a n a l y t i c a l l y o r i e n t e d s t u d i e s

might a p p l y o n l y t o h y p n o t i c dreams and a r e of dub ious v a l i d i t y anyway f o r a

v a r i e t y of o t h e r reasons ( d i s c u s s e d more f u l l y i n T a r t 1962b T a r t unpub l i shed

ms)

5

S h o r t l y a f t e r I had begun working w i t h p o s t h y p n o t i c s u g g e s t i o n t o i n -

f l u e n c e s t a g e 1 dreaming l a t e i n 1961 I d i scovered that t h e ba s ic q u e s t i o n of

whether i t would work a t a l l had been answered i n a p i o n e e r i n g d i s s e r t a t i o n

completed t h a t y e a r by Johann Stoyva a t t h e U n i v e r s i t y o f Chicago Stoyva

(1961) showed t h a t p o s t h y p n o t i c s u g g e s t i o n cou ld f o r some Ss markedly i n f l u -

ence t h e c o n t e n t of t h e i r s t a g e 1 dreams He would s u g g e s t e g tha t t h e y

dream about c l imbing a t r e e and t h e s e -Ss would r e p o r t tha t t h e y were dreaming

about c l imbing a t r e e when awakened from s t a g e 1 dreaming There was cons ider -

able v a r i a t i o n from -S t o -S i n t h e e x t e n t t o which t h e i r r e p o r t e d dreams were

i n f l u e n c e d by t h e s u g g e s t i o n s o f course b u t t h i s work w a s t h e f i r s t c o n c r e t e

i l l u s t r a t i o n o f t h e promise o f p o s t h y p n o t i c s u g g e s t i o n as a powerful and p re -

c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming

A f f e c t i n g Dream Content

I n t h e fa l l of 1961 I c a r r i e d o u t a s t u d y des igned t o compare r e s p o n s e s t o

h y p n o t i c s u g g e s t i o n s t o dream about s p e c i f i e d t o p i c s d u r i n g hypnos i s t o responses

2t o p o s t h y p n o t i c s u g g e s t i o n s t o dream about t h e same o r s i m i l a r t o p i c s d u r i n g

s t a g e 1 s l e e p T h i s d e s i g n a l s o t e s t e d t h e e x t e n t t o which p o s t h y p n o t i c sug-

g e s t i o n could a f f e c t s t a g e 1 dreaming which i s our pr imary i n t e r e s t today

Ten -S s were s e l e c t e d from a much l a r g e r group of s t u d e n t s by means o f sug-

g e s t i b i l i t y tests and t r a i n e d t o r e a c h a deep h y p n o t i c s t a t e Each -S t h e n par -

t i c i p a t e d i n two i n d i v i d u a l exper imenta l s e s s i o n s I n t h e one of i n t e r e s t to -

2 There were a c t u a l l y two equa ted n a r r a t i v e s used i n counterbalanced o r d e r s b u t i n t e rms o f our i n t e r e s t s today and t h e r e s u l t s i t w i l l b e s impler t o speak as i f t h e y were a s i n g l e s t i m u l u s n a r r a t i v e

6

day h e was hypno t ized and t o l d t o dream d u r i n g h i s natura1 s l e e p t h a t n i g h t

about a n a r r a t i v e which was immediate ly p l a y e d on a t a p e r e c o r d e r The n a r r a -

t i v e p l a c e d t h e -S i n a t h r e a t e n i n g s i t u a t i o n which evoked a r e a l i s t i c fear of

b o d i l y i n j u r y o r death It was emphasized tha t h e would dream about t h e

s t i m u l u s n a r r a t i v e i n h i s n a t u r a l s l e e p tha t n i g h t and -n o t i n a h y p n o t i c s t a t e

i n f a c t amnesia f o r t h e whole h y p n o t i c s e s s i o n was sugges ted No s u g g e s t i o n s

t o d i s g u i s e t h e dream about t h e s t i m u l u s n a r r a t i v e were g i v e n e x p l i c i t l y o r

i m p l i c i t l y The -S was t h e n dehypnot ized and s l e p t i n t h e 1ab f o r t h e n i g h t

Whenever h i s EEG and REM p a t t e r n s i n d i c a t e d s t a g e 1 dreaming i t was a l lowed t o

go on f o r a few m i n u t e s and t h e n h e wasawakened f o r a dream r e p o r t A r e l i a b l e

method f o r judg ing how w e l l t h e r e p o r t e d dreams conformed t o t h e s t i m u l u s n a r r a -

t i v e i n d e t a i l was worked o u t ( j u d g e s c o r r e l a t e d 99 w i t h each o t h e r ) and a l l

t h e s e dreams s c o r e d on i t

For f i v e of t h e t e n Ss n o t a s i n g l e e lement i n t h e i r r e p o r t e d s ta ge 1

dreams corresponded d i r e c t l y t o a n y t h i n g i n t h e s t i m u l u s n a r r a t i v e nor d i d any

of t h e s e dreams appear t o b e d i s g u i s e d o r d i s t o r t e d v e r s i o n s of t h e s t i m u l u s

n a r r a t i v e Th i s i s a moot p o i n t o f c o u r s e as no f r e e a s s o c i a t i o n s were ob-

t a i n e d from t h e -Ss and t h e dreams may have been so thorough ly d i s g u i s e d t h a t I

c o u l d n t s e e t h e connec t ion But i f t h i s was t h e c a s e i t i s a t y p i c a l compared

t o t h e e a r l i e r p s y c h o a n a l y t i c r e p o r t s i n which t h e s o p h i s t i c a t e d r e a d e r cou ld

s e e a c o n n e c t i o n between t h e d i sgu i sed dreams and t h e s t i m u l u s n a r r a t i v e s even

w i t h o u t t h e b e n e f i t of t h e f r e e a s s o c i a t i o n s Thus f o r h a l f t h e -Ss I concluded

t h a t t h e s u g g e s t i o n s had f a i l e d t o a f f e c t t h e i r s t a g e 1 dreaming

The o t h e r f i v e -Ss dreams were a f f e c t e d ranging from a minimal e f f e c t o f

two e l e m e n t s o f t h e 23 i n t h e s t i m u l u s n a r r a t i v e a p p e a r i n g i n a r e p o r t e d dream

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

3

There are two conven ien t c a t e g o r i e s under which a t tempts t o i n f l u e n c e s t a g e

1 dreaming cam b e subsumed One i s a t t e m p t s t o i n f l u e n c e t h e c o n t e n t o f dream-

i n g what i s dreamed about The second i s t h e p r o c e s s o f dreaming indepen-

den t of t h e p a r t i c u l a r c o n t e n t by which i s meant t h e s t a r t i n g and s t o p p i n g

o f dreaming i t s dura t ion i t s cyc l i ca 1 n a t u r e and t h e menta1 and p h y s i o l o g i -

ca1 p r o c e s s e s which comprise and accompany i t Thus i n t h e f i r s t case you may

a t t e m p t t o have your -S dream abou t d r i v i n g a r e d c o n v e r t i b l e w h i l e i n t h e second

you might t r y t o have him b e g i n s t a g e 1 dreaming immediately a f t e r f a l l i n g a s l eep

i n s t e a d of t h e u s u a l 90 m i n u t e s l a t e r

There have been a number of s t u d i e s i n t h e p a s t decade u s i n g t h e EEG and

REM t e c h n i q u e t o i n f l u e n c e t h e p r o c e s s and t o some e x t e n t t h e c o n t e n t o f

s t a g e 1 dreaming Most famous perhaps i s Dements dream d e p r i v a t i o n t e c h n i q u e

(Dement 1 9 6 0 ) where t h e -S i s e v e r y t ime h e b e g i n s s t a ge 1 dreaming

O t h e r s have worked w i t h t o t a l s l e e p d e p r i v a t i o n ( s e e e g Berger amp Oswald 1962)

West e t al 1962) p r e s e n t i n g s t i m u l i t o dreaming -Ss (Dement amp Wolper t 1958)

socia1 i s o l a t i o n (Wood 1 9 6 2 ) and v a r i o u s d rugs such as alcoho1 c a f f e i n e

(Gresham e t a l 1963) and amphetamine ( R e c h t s c h a l f e n amp Maron 1964) So t h e

q u e s t i o n a r i s e s Why t r y hypnos i s

The main reason i s tha t h y p n o t i c s u g g e s t i o n judg ing by some e a r l i e r l i t e r a -

t u r e o f f e r e d a hope of a much more p r e c i s e t y p e of c o n t r o l than t h e s e o t h e r

v a r i a b l e s a11 o f which t e n d e i t h e r t o d i s r u p t t h e s leep-dream c y c l e comple te ly

o r t o have r a t h e r m n s p e c i f i c e f f e c t s It should b e emphasized though tha t

h y p n o s i s i s n o t t h e o n l y p s y c h o l o g i c a l t e c h n i q u e which might b e u s e f u l f o r af-

f e c t i n g dreaming and c e r t a i n l y many o f t h e e f f e c t s which are cus tomar i ly p ro -

duced by h y p n o t i c s u g g e s t i o n cam probably b e produced t o some e x t e n t and w i t h

some Ss w i t h o u t i t But hypnos i s i s known t o b e a powerful p s y c h o l o g i c a l t e c h -

n i q u e which i s f a i r l y e a s y and conven ien t t o u s e i n t h e la bora tory s o i t seemed

a good p l a c e t o s t a r t i n t h e search f o r a powerful and p r e c i s e p s y c h o l o g i c a l

t e c h n i q u e f o r a f f e c t i n g dreaming

H i s t o r i c a l Background

P r i o r t o 1961 almost a11 t h e l i t e r a t u r e on t h e e f f e c t s o f p o s t h y p n o t i c

s u g g e s t i o n on n o c t u r n a l dreaming c o n s i s t e d of s t u d i e s ca r r i ed o u t by psycho-

a n a l y s t s more f o r t h e purpose o f demonstra t ing Freudian p r i n c i p l e s than f o r

a n open o b s e r v a t i o n o f what happened na tu ra 11~ T h i s 1 i t e r a t u r e a11 p u r p o r t e d

t o show t h a t some -Ss would dream at n i g h t i n accordance w i t h t h e p o s t h y p n o t i c

s u g g e s t i o n s g i v e n t h e m and tha t most of t h e dreams d i s t o r t e d t h e s e s u g g e s t i o n s

i n accordance w i t h F r e u d i a n p r i n c i p l e s of d i s g u i s e d i sp lacement e t c

B e s i d e s be ing r a t h e r anecdota1 t h i s l i t e r a t u r e s u f f e r s f rom t h e drawback tha t

a11 t h e dreams r e p o r t e d might have o c c u r r e d i n a h y p n o t i c s t a t e at n i g h t

r a t h e r than b e i n g s t a g e 1 dreams There had been no EEG r e c o r d i n g Indeed

S c h i f f Bunney amp Freedman (1961) u s i n g EEG m o n i t o r i n g r e p o r t e d tha t when t h e y

gave a p o s t h y p n o t i c s u g g e s t i o n t o dream abou t a c e r t a i n t o p i c d u r i n g s l e e p t o

t h e i r -S s h e a c t u a l l y dreamedt i n a h y p n o t i c s t a t e a l though s h e though t i t

was d u r i n g s l e e p Thus t h e b e s t c o n c l u s i o n tha t cou ld b e drawn i n 1961 was tha t

p o s t h y p n o t i c s u g g e s t i o n might i n f l u e n c e s t a ge 1 dreaming b u t t h e r e was no p roof

o f i t The o t h e r r e s u l t s r e p o r t e d i n t h e s e p s y c h o a n a l y t i c a l l y o r i e n t e d s t u d i e s

might a p p l y o n l y t o h y p n o t i c dreams and a r e of dub ious v a l i d i t y anyway f o r a

v a r i e t y of o t h e r reasons ( d i s c u s s e d more f u l l y i n T a r t 1962b T a r t unpub l i shed

ms)

5

S h o r t l y a f t e r I had begun working w i t h p o s t h y p n o t i c s u g g e s t i o n t o i n -

f l u e n c e s t a g e 1 dreaming l a t e i n 1961 I d i scovered that t h e ba s ic q u e s t i o n of

whether i t would work a t a l l had been answered i n a p i o n e e r i n g d i s s e r t a t i o n

completed t h a t y e a r by Johann Stoyva a t t h e U n i v e r s i t y o f Chicago Stoyva

(1961) showed t h a t p o s t h y p n o t i c s u g g e s t i o n cou ld f o r some Ss markedly i n f l u -

ence t h e c o n t e n t of t h e i r s t a g e 1 dreams He would s u g g e s t e g tha t t h e y

dream about c l imbing a t r e e and t h e s e -Ss would r e p o r t tha t t h e y were dreaming

about c l imbing a t r e e when awakened from s t a g e 1 dreaming There was cons ider -

able v a r i a t i o n from -S t o -S i n t h e e x t e n t t o which t h e i r r e p o r t e d dreams were

i n f l u e n c e d by t h e s u g g e s t i o n s o f course b u t t h i s work w a s t h e f i r s t c o n c r e t e

i l l u s t r a t i o n o f t h e promise o f p o s t h y p n o t i c s u g g e s t i o n as a powerful and p re -

c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming

A f f e c t i n g Dream Content

I n t h e fa l l of 1961 I c a r r i e d o u t a s t u d y des igned t o compare r e s p o n s e s t o

h y p n o t i c s u g g e s t i o n s t o dream about s p e c i f i e d t o p i c s d u r i n g hypnos i s t o responses

2t o p o s t h y p n o t i c s u g g e s t i o n s t o dream about t h e same o r s i m i l a r t o p i c s d u r i n g

s t a g e 1 s l e e p T h i s d e s i g n a l s o t e s t e d t h e e x t e n t t o which p o s t h y p n o t i c sug-

g e s t i o n could a f f e c t s t a g e 1 dreaming which i s our pr imary i n t e r e s t today

Ten -S s were s e l e c t e d from a much l a r g e r group of s t u d e n t s by means o f sug-

g e s t i b i l i t y tests and t r a i n e d t o r e a c h a deep h y p n o t i c s t a t e Each -S t h e n par -

t i c i p a t e d i n two i n d i v i d u a l exper imenta l s e s s i o n s I n t h e one of i n t e r e s t to -

2 There were a c t u a l l y two equa ted n a r r a t i v e s used i n counterbalanced o r d e r s b u t i n t e rms o f our i n t e r e s t s today and t h e r e s u l t s i t w i l l b e s impler t o speak as i f t h e y were a s i n g l e s t i m u l u s n a r r a t i v e

6

day h e was hypno t ized and t o l d t o dream d u r i n g h i s natura1 s l e e p t h a t n i g h t

about a n a r r a t i v e which was immediate ly p l a y e d on a t a p e r e c o r d e r The n a r r a -

t i v e p l a c e d t h e -S i n a t h r e a t e n i n g s i t u a t i o n which evoked a r e a l i s t i c fear of

b o d i l y i n j u r y o r death It was emphasized tha t h e would dream about t h e

s t i m u l u s n a r r a t i v e i n h i s n a t u r a l s l e e p tha t n i g h t and -n o t i n a h y p n o t i c s t a t e

i n f a c t amnesia f o r t h e whole h y p n o t i c s e s s i o n was sugges ted No s u g g e s t i o n s

t o d i s g u i s e t h e dream about t h e s t i m u l u s n a r r a t i v e were g i v e n e x p l i c i t l y o r

i m p l i c i t l y The -S was t h e n dehypnot ized and s l e p t i n t h e 1ab f o r t h e n i g h t

Whenever h i s EEG and REM p a t t e r n s i n d i c a t e d s t a g e 1 dreaming i t was a l lowed t o

go on f o r a few m i n u t e s and t h e n h e wasawakened f o r a dream r e p o r t A r e l i a b l e

method f o r judg ing how w e l l t h e r e p o r t e d dreams conformed t o t h e s t i m u l u s n a r r a -

t i v e i n d e t a i l was worked o u t ( j u d g e s c o r r e l a t e d 99 w i t h each o t h e r ) and a l l

t h e s e dreams s c o r e d on i t

For f i v e of t h e t e n Ss n o t a s i n g l e e lement i n t h e i r r e p o r t e d s ta ge 1

dreams corresponded d i r e c t l y t o a n y t h i n g i n t h e s t i m u l u s n a r r a t i v e nor d i d any

of t h e s e dreams appear t o b e d i s g u i s e d o r d i s t o r t e d v e r s i o n s of t h e s t i m u l u s

n a r r a t i v e Th i s i s a moot p o i n t o f c o u r s e as no f r e e a s s o c i a t i o n s were ob-

t a i n e d from t h e -Ss and t h e dreams may have been so thorough ly d i s g u i s e d t h a t I

c o u l d n t s e e t h e connec t ion But i f t h i s was t h e c a s e i t i s a t y p i c a l compared

t o t h e e a r l i e r p s y c h o a n a l y t i c r e p o r t s i n which t h e s o p h i s t i c a t e d r e a d e r cou ld

s e e a c o n n e c t i o n between t h e d i sgu i sed dreams and t h e s t i m u l u s n a r r a t i v e s even

w i t h o u t t h e b e n e f i t of t h e f r e e a s s o c i a t i o n s Thus f o r h a l f t h e -Ss I concluded

t h a t t h e s u g g e s t i o n s had f a i l e d t o a f f e c t t h e i r s t a g e 1 dreaming

The o t h e r f i v e -Ss dreams were a f f e c t e d ranging from a minimal e f f e c t o f

two e l e m e n t s o f t h e 23 i n t h e s t i m u l u s n a r r a t i v e a p p e a r i n g i n a r e p o r t e d dream

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

some Ss w i t h o u t i t But hypnos i s i s known t o b e a powerful p s y c h o l o g i c a l t e c h -

n i q u e which i s f a i r l y e a s y and conven ien t t o u s e i n t h e la bora tory s o i t seemed

a good p l a c e t o s t a r t i n t h e search f o r a powerful and p r e c i s e p s y c h o l o g i c a l

t e c h n i q u e f o r a f f e c t i n g dreaming

H i s t o r i c a l Background

P r i o r t o 1961 almost a11 t h e l i t e r a t u r e on t h e e f f e c t s o f p o s t h y p n o t i c

s u g g e s t i o n on n o c t u r n a l dreaming c o n s i s t e d of s t u d i e s ca r r i ed o u t by psycho-

a n a l y s t s more f o r t h e purpose o f demonstra t ing Freudian p r i n c i p l e s than f o r

a n open o b s e r v a t i o n o f what happened na tu ra 11~ T h i s 1 i t e r a t u r e a11 p u r p o r t e d

t o show t h a t some -Ss would dream at n i g h t i n accordance w i t h t h e p o s t h y p n o t i c

s u g g e s t i o n s g i v e n t h e m and tha t most of t h e dreams d i s t o r t e d t h e s e s u g g e s t i o n s

i n accordance w i t h F r e u d i a n p r i n c i p l e s of d i s g u i s e d i sp lacement e t c

B e s i d e s be ing r a t h e r anecdota1 t h i s l i t e r a t u r e s u f f e r s f rom t h e drawback tha t

a11 t h e dreams r e p o r t e d might have o c c u r r e d i n a h y p n o t i c s t a t e at n i g h t

r a t h e r than b e i n g s t a g e 1 dreams There had been no EEG r e c o r d i n g Indeed

S c h i f f Bunney amp Freedman (1961) u s i n g EEG m o n i t o r i n g r e p o r t e d tha t when t h e y

gave a p o s t h y p n o t i c s u g g e s t i o n t o dream abou t a c e r t a i n t o p i c d u r i n g s l e e p t o

t h e i r -S s h e a c t u a l l y dreamedt i n a h y p n o t i c s t a t e a l though s h e though t i t

was d u r i n g s l e e p Thus t h e b e s t c o n c l u s i o n tha t cou ld b e drawn i n 1961 was tha t

p o s t h y p n o t i c s u g g e s t i o n might i n f l u e n c e s t a ge 1 dreaming b u t t h e r e was no p roof

o f i t The o t h e r r e s u l t s r e p o r t e d i n t h e s e p s y c h o a n a l y t i c a l l y o r i e n t e d s t u d i e s

might a p p l y o n l y t o h y p n o t i c dreams and a r e of dub ious v a l i d i t y anyway f o r a

v a r i e t y of o t h e r reasons ( d i s c u s s e d more f u l l y i n T a r t 1962b T a r t unpub l i shed

ms)

5

S h o r t l y a f t e r I had begun working w i t h p o s t h y p n o t i c s u g g e s t i o n t o i n -

f l u e n c e s t a g e 1 dreaming l a t e i n 1961 I d i scovered that t h e ba s ic q u e s t i o n of

whether i t would work a t a l l had been answered i n a p i o n e e r i n g d i s s e r t a t i o n

completed t h a t y e a r by Johann Stoyva a t t h e U n i v e r s i t y o f Chicago Stoyva

(1961) showed t h a t p o s t h y p n o t i c s u g g e s t i o n cou ld f o r some Ss markedly i n f l u -

ence t h e c o n t e n t of t h e i r s t a g e 1 dreams He would s u g g e s t e g tha t t h e y

dream about c l imbing a t r e e and t h e s e -Ss would r e p o r t tha t t h e y were dreaming

about c l imbing a t r e e when awakened from s t a g e 1 dreaming There was cons ider -

able v a r i a t i o n from -S t o -S i n t h e e x t e n t t o which t h e i r r e p o r t e d dreams were

i n f l u e n c e d by t h e s u g g e s t i o n s o f course b u t t h i s work w a s t h e f i r s t c o n c r e t e

i l l u s t r a t i o n o f t h e promise o f p o s t h y p n o t i c s u g g e s t i o n as a powerful and p re -

c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming

A f f e c t i n g Dream Content

I n t h e fa l l of 1961 I c a r r i e d o u t a s t u d y des igned t o compare r e s p o n s e s t o

h y p n o t i c s u g g e s t i o n s t o dream about s p e c i f i e d t o p i c s d u r i n g hypnos i s t o responses

2t o p o s t h y p n o t i c s u g g e s t i o n s t o dream about t h e same o r s i m i l a r t o p i c s d u r i n g

s t a g e 1 s l e e p T h i s d e s i g n a l s o t e s t e d t h e e x t e n t t o which p o s t h y p n o t i c sug-

g e s t i o n could a f f e c t s t a g e 1 dreaming which i s our pr imary i n t e r e s t today

Ten -S s were s e l e c t e d from a much l a r g e r group of s t u d e n t s by means o f sug-

g e s t i b i l i t y tests and t r a i n e d t o r e a c h a deep h y p n o t i c s t a t e Each -S t h e n par -

t i c i p a t e d i n two i n d i v i d u a l exper imenta l s e s s i o n s I n t h e one of i n t e r e s t to -

2 There were a c t u a l l y two equa ted n a r r a t i v e s used i n counterbalanced o r d e r s b u t i n t e rms o f our i n t e r e s t s today and t h e r e s u l t s i t w i l l b e s impler t o speak as i f t h e y were a s i n g l e s t i m u l u s n a r r a t i v e

6

day h e was hypno t ized and t o l d t o dream d u r i n g h i s natura1 s l e e p t h a t n i g h t

about a n a r r a t i v e which was immediate ly p l a y e d on a t a p e r e c o r d e r The n a r r a -

t i v e p l a c e d t h e -S i n a t h r e a t e n i n g s i t u a t i o n which evoked a r e a l i s t i c fear of

b o d i l y i n j u r y o r death It was emphasized tha t h e would dream about t h e

s t i m u l u s n a r r a t i v e i n h i s n a t u r a l s l e e p tha t n i g h t and -n o t i n a h y p n o t i c s t a t e

i n f a c t amnesia f o r t h e whole h y p n o t i c s e s s i o n was sugges ted No s u g g e s t i o n s

t o d i s g u i s e t h e dream about t h e s t i m u l u s n a r r a t i v e were g i v e n e x p l i c i t l y o r

i m p l i c i t l y The -S was t h e n dehypnot ized and s l e p t i n t h e 1ab f o r t h e n i g h t

Whenever h i s EEG and REM p a t t e r n s i n d i c a t e d s t a g e 1 dreaming i t was a l lowed t o

go on f o r a few m i n u t e s and t h e n h e wasawakened f o r a dream r e p o r t A r e l i a b l e

method f o r judg ing how w e l l t h e r e p o r t e d dreams conformed t o t h e s t i m u l u s n a r r a -

t i v e i n d e t a i l was worked o u t ( j u d g e s c o r r e l a t e d 99 w i t h each o t h e r ) and a l l

t h e s e dreams s c o r e d on i t

For f i v e of t h e t e n Ss n o t a s i n g l e e lement i n t h e i r r e p o r t e d s ta ge 1

dreams corresponded d i r e c t l y t o a n y t h i n g i n t h e s t i m u l u s n a r r a t i v e nor d i d any

of t h e s e dreams appear t o b e d i s g u i s e d o r d i s t o r t e d v e r s i o n s of t h e s t i m u l u s

n a r r a t i v e Th i s i s a moot p o i n t o f c o u r s e as no f r e e a s s o c i a t i o n s were ob-

t a i n e d from t h e -Ss and t h e dreams may have been so thorough ly d i s g u i s e d t h a t I

c o u l d n t s e e t h e connec t ion But i f t h i s was t h e c a s e i t i s a t y p i c a l compared

t o t h e e a r l i e r p s y c h o a n a l y t i c r e p o r t s i n which t h e s o p h i s t i c a t e d r e a d e r cou ld

s e e a c o n n e c t i o n between t h e d i sgu i sed dreams and t h e s t i m u l u s n a r r a t i v e s even

w i t h o u t t h e b e n e f i t of t h e f r e e a s s o c i a t i o n s Thus f o r h a l f t h e -Ss I concluded

t h a t t h e s u g g e s t i o n s had f a i l e d t o a f f e c t t h e i r s t a g e 1 dreaming

The o t h e r f i v e -Ss dreams were a f f e c t e d ranging from a minimal e f f e c t o f

two e l e m e n t s o f t h e 23 i n t h e s t i m u l u s n a r r a t i v e a p p e a r i n g i n a r e p o r t e d dream

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

5

S h o r t l y a f t e r I had begun working w i t h p o s t h y p n o t i c s u g g e s t i o n t o i n -

f l u e n c e s t a g e 1 dreaming l a t e i n 1961 I d i scovered that t h e ba s ic q u e s t i o n of

whether i t would work a t a l l had been answered i n a p i o n e e r i n g d i s s e r t a t i o n

completed t h a t y e a r by Johann Stoyva a t t h e U n i v e r s i t y o f Chicago Stoyva

(1961) showed t h a t p o s t h y p n o t i c s u g g e s t i o n cou ld f o r some Ss markedly i n f l u -

ence t h e c o n t e n t of t h e i r s t a g e 1 dreams He would s u g g e s t e g tha t t h e y

dream about c l imbing a t r e e and t h e s e -Ss would r e p o r t tha t t h e y were dreaming

about c l imbing a t r e e when awakened from s t a g e 1 dreaming There was cons ider -

able v a r i a t i o n from -S t o -S i n t h e e x t e n t t o which t h e i r r e p o r t e d dreams were

i n f l u e n c e d by t h e s u g g e s t i o n s o f course b u t t h i s work w a s t h e f i r s t c o n c r e t e

i l l u s t r a t i o n o f t h e promise o f p o s t h y p n o t i c s u g g e s t i o n as a powerful and p re -

c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming

A f f e c t i n g Dream Content

I n t h e fa l l of 1961 I c a r r i e d o u t a s t u d y des igned t o compare r e s p o n s e s t o

h y p n o t i c s u g g e s t i o n s t o dream about s p e c i f i e d t o p i c s d u r i n g hypnos i s t o responses

2t o p o s t h y p n o t i c s u g g e s t i o n s t o dream about t h e same o r s i m i l a r t o p i c s d u r i n g

s t a g e 1 s l e e p T h i s d e s i g n a l s o t e s t e d t h e e x t e n t t o which p o s t h y p n o t i c sug-

g e s t i o n could a f f e c t s t a g e 1 dreaming which i s our pr imary i n t e r e s t today

Ten -S s were s e l e c t e d from a much l a r g e r group of s t u d e n t s by means o f sug-

g e s t i b i l i t y tests and t r a i n e d t o r e a c h a deep h y p n o t i c s t a t e Each -S t h e n par -

t i c i p a t e d i n two i n d i v i d u a l exper imenta l s e s s i o n s I n t h e one of i n t e r e s t to -

2 There were a c t u a l l y two equa ted n a r r a t i v e s used i n counterbalanced o r d e r s b u t i n t e rms o f our i n t e r e s t s today and t h e r e s u l t s i t w i l l b e s impler t o speak as i f t h e y were a s i n g l e s t i m u l u s n a r r a t i v e

6

day h e was hypno t ized and t o l d t o dream d u r i n g h i s natura1 s l e e p t h a t n i g h t

about a n a r r a t i v e which was immediate ly p l a y e d on a t a p e r e c o r d e r The n a r r a -

t i v e p l a c e d t h e -S i n a t h r e a t e n i n g s i t u a t i o n which evoked a r e a l i s t i c fear of

b o d i l y i n j u r y o r death It was emphasized tha t h e would dream about t h e

s t i m u l u s n a r r a t i v e i n h i s n a t u r a l s l e e p tha t n i g h t and -n o t i n a h y p n o t i c s t a t e

i n f a c t amnesia f o r t h e whole h y p n o t i c s e s s i o n was sugges ted No s u g g e s t i o n s

t o d i s g u i s e t h e dream about t h e s t i m u l u s n a r r a t i v e were g i v e n e x p l i c i t l y o r

i m p l i c i t l y The -S was t h e n dehypnot ized and s l e p t i n t h e 1ab f o r t h e n i g h t

Whenever h i s EEG and REM p a t t e r n s i n d i c a t e d s t a g e 1 dreaming i t was a l lowed t o

go on f o r a few m i n u t e s and t h e n h e wasawakened f o r a dream r e p o r t A r e l i a b l e

method f o r judg ing how w e l l t h e r e p o r t e d dreams conformed t o t h e s t i m u l u s n a r r a -

t i v e i n d e t a i l was worked o u t ( j u d g e s c o r r e l a t e d 99 w i t h each o t h e r ) and a l l

t h e s e dreams s c o r e d on i t

For f i v e of t h e t e n Ss n o t a s i n g l e e lement i n t h e i r r e p o r t e d s ta ge 1

dreams corresponded d i r e c t l y t o a n y t h i n g i n t h e s t i m u l u s n a r r a t i v e nor d i d any

of t h e s e dreams appear t o b e d i s g u i s e d o r d i s t o r t e d v e r s i o n s of t h e s t i m u l u s

n a r r a t i v e Th i s i s a moot p o i n t o f c o u r s e as no f r e e a s s o c i a t i o n s were ob-

t a i n e d from t h e -Ss and t h e dreams may have been so thorough ly d i s g u i s e d t h a t I

c o u l d n t s e e t h e connec t ion But i f t h i s was t h e c a s e i t i s a t y p i c a l compared

t o t h e e a r l i e r p s y c h o a n a l y t i c r e p o r t s i n which t h e s o p h i s t i c a t e d r e a d e r cou ld

s e e a c o n n e c t i o n between t h e d i sgu i sed dreams and t h e s t i m u l u s n a r r a t i v e s even

w i t h o u t t h e b e n e f i t of t h e f r e e a s s o c i a t i o n s Thus f o r h a l f t h e -Ss I concluded

t h a t t h e s u g g e s t i o n s had f a i l e d t o a f f e c t t h e i r s t a g e 1 dreaming

The o t h e r f i v e -Ss dreams were a f f e c t e d ranging from a minimal e f f e c t o f

two e l e m e n t s o f t h e 23 i n t h e s t i m u l u s n a r r a t i v e a p p e a r i n g i n a r e p o r t e d dream

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

6

day h e was hypno t ized and t o l d t o dream d u r i n g h i s natura1 s l e e p t h a t n i g h t

about a n a r r a t i v e which was immediate ly p l a y e d on a t a p e r e c o r d e r The n a r r a -

t i v e p l a c e d t h e -S i n a t h r e a t e n i n g s i t u a t i o n which evoked a r e a l i s t i c fear of

b o d i l y i n j u r y o r death It was emphasized tha t h e would dream about t h e

s t i m u l u s n a r r a t i v e i n h i s n a t u r a l s l e e p tha t n i g h t and -n o t i n a h y p n o t i c s t a t e

i n f a c t amnesia f o r t h e whole h y p n o t i c s e s s i o n was sugges ted No s u g g e s t i o n s

t o d i s g u i s e t h e dream about t h e s t i m u l u s n a r r a t i v e were g i v e n e x p l i c i t l y o r

i m p l i c i t l y The -S was t h e n dehypnot ized and s l e p t i n t h e 1ab f o r t h e n i g h t

Whenever h i s EEG and REM p a t t e r n s i n d i c a t e d s t a g e 1 dreaming i t was a l lowed t o

go on f o r a few m i n u t e s and t h e n h e wasawakened f o r a dream r e p o r t A r e l i a b l e

method f o r judg ing how w e l l t h e r e p o r t e d dreams conformed t o t h e s t i m u l u s n a r r a -

t i v e i n d e t a i l was worked o u t ( j u d g e s c o r r e l a t e d 99 w i t h each o t h e r ) and a l l

t h e s e dreams s c o r e d on i t

For f i v e of t h e t e n Ss n o t a s i n g l e e lement i n t h e i r r e p o r t e d s ta ge 1

dreams corresponded d i r e c t l y t o a n y t h i n g i n t h e s t i m u l u s n a r r a t i v e nor d i d any

of t h e s e dreams appear t o b e d i s g u i s e d o r d i s t o r t e d v e r s i o n s of t h e s t i m u l u s

n a r r a t i v e Th i s i s a moot p o i n t o f c o u r s e as no f r e e a s s o c i a t i o n s were ob-

t a i n e d from t h e -Ss and t h e dreams may have been so thorough ly d i s g u i s e d t h a t I

c o u l d n t s e e t h e connec t ion But i f t h i s was t h e c a s e i t i s a t y p i c a l compared

t o t h e e a r l i e r p s y c h o a n a l y t i c r e p o r t s i n which t h e s o p h i s t i c a t e d r e a d e r cou ld

s e e a c o n n e c t i o n between t h e d i sgu i sed dreams and t h e s t i m u l u s n a r r a t i v e s even

w i t h o u t t h e b e n e f i t of t h e f r e e a s s o c i a t i o n s Thus f o r h a l f t h e -Ss I concluded

t h a t t h e s u g g e s t i o n s had f a i l e d t o a f f e c t t h e i r s t a g e 1 dreaming

The o t h e r f i v e -Ss dreams were a f f e c t e d ranging from a minimal e f f e c t o f

two e l e m e n t s o f t h e 23 i n t h e s t i m u l u s n a r r a t i v e a p p e a r i n g i n a r e p o r t e d dream

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

7

t o a h i g h of 1 3 o f t h e 23 e lements appearing i n another r e p o r t e d dream Two

of t h e f i v e -Ss had o n l y a s i n g l e s ta ge 1 dream of t h e n i g h t a f f e c t e d two o t h e r s

had two s ta ge 1 dreams a f f e c t e d and t h e f i f t h -S had a11 f i v e of h i s s t a ge 1

dreams s t r o n g l y af f e c t e d

These b a r e f i g u r e s do n o t ca p ture some important c h a r a x t e r i s t i c s of t h e

data however so I must add some q u a l i t a t i v e impress ions The r e p o r t e d dreams

even t h o s e showing t h e g r e a t e s t e f f e c t s of t h e p o s t h y p n o t i c s u g g e s t i o n s were n o t

s t r a igh t fo rwa rd r e p r o d u c t i o n s of t h e s t i m u l u s na r ra t ive Rather t h e r e was

c o n s i d e r a b l e a dd i t ion o f e x t r a n e o u s d e t a i l and cons ide ra b le embell ishment The

b e s t -S i n f a c t c o n s t a n t l y added a happy ending t o t h e dreamed about s t i m u l u s

n a r r a t i v e r a the r t h a n b e i n g l e f t s t r a n d e d i n a f ea r fu1 s i t u a t i o n A t t h e low

end of t h e r e s p o n s e continuum we have a few d e t a i l s of t h e s t i m u l u s n a r r a t i v e

appearing i n a dream tha t seems o t h e r w i s e unconnected w i t h t h e exper imenta l

s i t u a t i o n At t h e h i g h end t h e complete o u t l i n e and theme of t h e s t i m u l u s n a r -

r a t i v e dominates t h e dream y e t t h e r e i s s t i l l c o n s i d e r a b l e embel l i shment and

modi f i ca t ion It i s as i f t h e r e s u l t i n g dream were a p roduc t of a c o n f l i c t be-

tween t h e sugges ted n a r r a t i v e and an autonomous n a t u r a l dream p r o c e s s which has

a s i t were m a t e r i a l o f i t s own t o p r e s e n t d u r i n g t h e t i m e of dreaming

D e t a i l s may b e found i n t h e o r i g i n a l s t u d y ( T a r t 1962b)

These f i n d i n g s were conf i rmed and extended t o some e x t e n t a y e a r l a t e r when

I d i d some f u r t h e r work ( T a r t 1963 i n p r e s s ) o n t h i s u s i n g t h e one 3 who had

responded so w e l l b e f o r e and one new -S An emot iona l ly n e u t r a l s t i m u l u s n a r r a t i v e

was used t h i s t ime b u t t h e r e s u l t s were e s s e n t i a 1 1 ~t h e same t h e dreams domi-

n a t e d by t h e theme of t h e s t i m u l u s n a r r a t i v e b u t cons ide ra b le a d d i t i o n and modi-

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

8

f i c a t i o n by t h e autonomous dreaming p r o c e s s It was i n t e r e s t i n g t o n o t e how-

e v e r t h a t t h e new -S s r e p o r t e d dreams showed much l e s s m o d i f i c a t i o n and embel l i sh -

ment t h a n t h e o t h e r 3 s t h e y were much more a s t r a i g h t p layback and t h i s

seemed t o p a r a l l e l t h e l a c k o f i n i t i a t i v e and p a s s i v i t y t h a t t h i s -S d i s p l a y e d

i n a l l h i s r e l a t i o n s t o me and o t h e r s T h i s s u g g e s t s some i n t e r e s t i n g f u t u r e

s t u d i e s

Granted t h a t p o s t h y p n o t i c s u g g e s t i o n does indeed o f f e r cons idera b le pro-

mise a s a powerful and p r e c i s e t o o l f o r a f f e c t i n g s t a g e 1 dreaming (of good hyp-

n o t i c S s ) where do we go n e x t C e r t a i n l y t h e degree t o which waking s u g g e s t i o n

can produce t h e same r e s u l t s i s o f i n t e r e s t e s p e c i a l l y i n view of t h e c o n f l i c t s

i n t h e c u r r e n t l i t e r a t u r e over j u s t what e f f e c t hypnot ic i n d u c t i o n has My own

i n t e r e s t s however l i e i n e x p l o r i n g t h e l i m i t s o f what can b e done i n t h i s a r e a

and i t s p o s s i b l e e f f e c t s and a p p l i c a t i o n s For example can p o s t h y p n o t i c sug-

g e s t i o n complete ly c o n t r o l t h e c o n t e n t o f some -Ss s t a g e 1 dreams I f so w i l l

t h i s r e s u l t i n an i n c r e a s i n g pressure from t h e autonomous dream p r o c e s s

s i m i l a r t o what o c c u r s i n dream depr iva t ion Might s u g g e s t i o n s t o dream about

p a r t i c u l a r t o p i c s r e s u l t i n r e c a l l d u r i n g t h e dream o f r e l e v a n t i n f o r m a t i o n

which might n o t b e a c c e s t b l e t o consc ious r e c a l l And t o look way ahead what

a r e t h e e f f e c t s on waking behav ior and p e r s o n a l i t y of having had c e r t a i n dream

e x p e r i e n c e s a s e x p e r i e n c e s r e g a r d l e s s o f t h e i r meaningl o r i n t e r p r e t a t i o n

Some t h e r a p i s t s (eg P r o g o f f 1963) f e e l t h a t dream e x p e r i e n c e per -s e h a s im-

p o r t a n t and sometimes b e n e f i c i a l e f f e c t s on p e r s o n a l i t y and b e h a v i o r s o we may

s p e c u l a t e t h a t c o n t r o l l i n g dreaming th rough p o s t h y p n o t i c s u g g e s t i o n may some

day have t h e r a p e u t i c a p p l i c a t i o n s

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

A f f e c t i n g t h e Process of Dreaming

Leaving s p e c u l a t i o n now and coming back t o data l e t me o u t l i n e my i n i t i a l

a t t e m p t s t o i n f l u e n c e t h e p r o c e s s o f dreaming w i t h p o s t h y p n o t i c sugges t ion

Some ba s ic a s p e c t s o f any p r o c e s s are i t s s t a r t i n g s t o p p i n g and dura t ion s o

i n t h e l a t t e r p a r t of 1962 I worked v e r y i n t e n s i v e l y w i t h two Ss a t t e m p t i n g t o

s t a r t s t o p and modify t h e -dura t ion o f t h e i r normal s t a g e 1 dreaming ( T a r t 1963)

Both of t h e s e -Ss were good hypnot ic Ss and cou ld have t h e c o n t e n t of t h e i r dreams

s t r o n g l y a f f e c t e d by p o s t h y p n o t i c sugges t ion

It i s w e l l e s t a b l i s h e d now tha t t h e s leep-dream c y c l e o f most norma1 -Ss i s

q u i t e s t a b l e f o r each Sg and e s s e n t i a 1 1 ~ una f fected by norma1 v a r i a t i o n s i n

day t o day a c t i v i t i e s Each stage 1 dreaming p e r i o d b e g i n s at approximately

90 minu te i n t e r v a l s a f t e r t h e s t a r t o f s l e e p each dreaming p e r i o d g e t s l o n g e r

t h a n t h e p r e v i o u s one and t h e to ta 1 amount o f t ime s p e n t i n s t a g e 1 dream-

i n g (20-30 f o r young a du l t s ) i s c o n s t a n t from n i g h t t o n i g h t w i t h i n a few per -

c e n t f o r a g i v e n -S For t h e two -Ss i n t h i s s t u d y one showed a mean o f 30

dream t ime w i t h a standard d e v i a t i o n o f 3 t h e o t h e r a mean of 28 dream t ime

w i t h a standard dev ia t ion o f 5 These data are based on e i g h t b a s e l i n e n i g h t s

f o r each -S i n which t h e o n l y p o s t h y p n o t i c s u g g e s t i o n was t o s l e e p normal ly

3The d e s i g n c a l l e d f o r each -S having two n i g h t s each on four t y p e s of p o s t -

hypnot ic s u g g e s t i o n (a) wake up a t t h e end of each dream (b ) wake up a t t h e

beg inn ing of each dream ( c ) dream a11 n i g h t long and ( d ) d o n t dream a t a l l

L e t u s look at t h e r e s u l t s of t h e wake up s u g g e s t i o n s t aken t o g e t h e r f i r s t

^

One of them had t h r e e n i g h t s o f dream a l l n i g h t and o n l y one n i g h t of d o n t dream so t h e r e s u l t 1a ter noted f o r t h e dream a11 n i g h t s u g g e s t i o n s i s based on t h i s -S s t h r e e n i g h t s

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

1 0

T h i s was a powerful e f f e c t The two 2s never awakened on t h e i r e i g h t b a s e l i n e

n i g h t s b u t awakened a t o t a l o f 27 t imes o r an average o f t h r e e awakenings

p e r exper imenta l n i g h t on t h e wake up n i g h t s The p r e c i s i o n o f t h i s e f f e c t i s

a l i t t l e more d i f f i c u l t t o e v a l u a t e due t o such ambiguous r e s p o n s e s as awakening

from p e r i o d s when body movement had obscured t h e EEG r e c o r d f o r some t ime o r

awakening from non-s tage 1 s l e e p on wake a t s tar t n i g h t s a t a t ime when a s t a g e

1 p e r i o d was expec ted so a v a r i e t y o f c r i t e r i a were used t o e v a l u a t e t h e p r e -

c i s i o n o f compliance w i t h t h e wake up s u g g e s t i o n s By t h e most s t r i n g e n t c r i -

t e r i a 31 of t h e awakening r e p r e s e n t e d p e r f e c t compliance w i t h t h e s u g g e s t i o n s

by t h e most generous c r i t e r i a t h i s f i g u r e i s 90

The d o n t dream s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h e i t h e r 2 and

t h e dream a l l n i g h t s u g g e s t i o n s had no s i g n i f i c a n t e f f e c t w i t h one 2 For t h e

o t h e r 5 however t h e r e was a n inc rea se i n s t a g e 1 dream t ime on t h e o r d e r o f

h a l f an hour p e r n i g h t a 21 increa se over b a s e l i n e n i g h t s which was s t a t i s t i -

c a l l y s i g n i f i c a n t by a v a r i e t y o f t e s t s T h i s i s s t i l l far s h o r t o f dreaming

a l l n i g h t though Stoyva (1961) n o t i c e d a s h o r t e n i n g e f f e c t o f approx imate ly

equa l b u t o p p o s i t e magnitude t o t h i s one as a r e s u l t of s u g g e s t i o n s des igned t o

a f f e c t c o n t e n t and Rech tschaf fen and Verdone ( i n p r e s s ) found an e f f e c t o f about

t h e same magni tude as a r e s u l t of o f f e r i n g -Ss c a s h rewards f o r inc rea s ing o r de-

crea s ing t h e amount o f t ime they s p e n t dreaming Although we need more d a t a on

t h i s one can s p e c u l a t e t h a t t h e t iming and d u r a t i o n o f s t a g e 1 dreaming i s b a s i -

c a l l y under p h y s i o l o g i c a l c o n t r o l and t h e s o r t s o f p s y c h o l o g i c a l v a r i a b l e s one

can u s e i n t h e l a b o r a t o r y may n o t b e a b l e t o modify t h i s physiologica 1 c o n t r o l

more t h a n about 20

The t e c h n i q u e needs f u r t h e r development of c o u r s e b u t a t p r e s e n t we can

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

conc lude t h a t p o s t h y p n o t i c s u g g e s t i o n i s a powerful t o o l f o r t e r m i n a t i n g stage

1 dreaming by a r o u s a l and shows promise o f b e i n g f a i r l y p r e c i s e as t o whether

i t o c c u r s a t t h e b e g i n n i n g s o r ends o f t h e dreams 1nsofar as a f f e c t i n g dream

d u r a t i o n though i t does n o t seem t o b e a powerful t o o l and t h e r e s u l t s are

n o t v e r y impress ive

A s w i t h t h e c o n t e n t e f f e c t some i n t r i g u i n g a s p e c t s o f t h e d a t a a r e n o t

encompassed by t h e s e f i g u r e s Granted t h a t -Ss were a b l e t o awaken a t t h e be-

g i n n i n g s and ends o f t h e i r dreams f a i r l y w e l l how d i d t h e y do i t How d i d t h e y

d i s c r i m i n a t e t h e b e g i n n i n g s and ends of t h e i r dreams and how d i d t h e y arouse

themse lves i n t o wakefu lness

The phys io log ica 1 measures (EEG REMs and b a s a l s k i n r e s i s t a n c e ) s u g g e s t

tha t some of t h e d i s c r i m i n a t i o n s may have t a k e n p l a c e i n a n awake o r half-awake

s t a t e as some o f t h e awakenings were proceeded by l o n g s t r e t c h e s of body move-

ments o b s c u r i n g t h e EEG r e c o r d and making i t i m p o s s i b l e t o b e s u r e t h e -S w a s

p h y s i o l o g i c a l l y a s l e e p But a number o f a r o u s a l s took p l a c e w i t h i n a few seconds

from c l e a r s t a g e 1 dreaming so we must t u r n t o o u r o n l y o t h e r s o u r c e o f d a t a

t h e dreams r e p o r t e d from t h e s e awakenings

B e f o r e s t a r t i n g t h e s t u d y I s u s p e c t e d tha t t h e dream c o n t e n t would show

some s o r t o f change j u s t p r i o r t o t h e -Ss awakening p e r h a p s a r e p o r t of a change

i n dream consc iousness o r a s y m b o l i z a t i o n o r r e p r e s e n t a t i o n of a change of

c o n s c i o u s n e s s - g o i n g th rough a door c l imbing a l a d d e r h e a r i n g an a l a r m c l o c k

o r t h e l i k e Much t o my s u r p r i s e I cou ld f i n d n o t h i n g i n t h e r e p o r t e d dreams

which shed any l i g h t on t h e d i s c r i m i n a t i v e o r a r o u s a l p r o c e s s e s The dream ac-

t i o n would b e g o i n g a l o n g a t i t s own pace and a l l o f a sudden t h e -S was awake

and saying t o me I m awake now Judgements o f t h e completeness o f t h e r e -

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

12

p o r t e d dreams ind ica t ed tha t t h o s e r e p o r t e d from wake-at-end n i g h t s were s i g -

n i f i c a n t l y more complete than t h o s e from wake-a t -s tar t n i g h t s as w e l l as t a k i n g

s i g n i f i c a n t l y more words t o d e s c r i b e b u t a s ide from t h i s I have no idea

o f how t h e -Ss d i sc r imina t ed t h e beg inn ings and ends of t h e i r dreams and aroused

themselves It i s t empt ing t o speak o f some p r o c e s s of judgement d i s s o c i a t e d

f rom dream c o n s c i o u s n e s s b u t t h i s r e a l l y exp la ins n o t h i n g at t h i s s t a g e of o u r

knowledge a l t h o u g h s u g g e s t i n g some i n t r i g u i n g resea rch problems

Where do we go from h e r e i n a f f e c t i n g dream p r o c e s s by p o s t h y p n o t i c sug-

g e s t i o n To s p e c u l a t e on a few p o s s i b i l i t i e s The wake at s tart s u g g e s t i o n s

cou ld be used as a s o r t o f dream d e p r i v a t i o n t e c h n i q u e and i t s e f f e c t s i n v e s t i -

gated The na tu re of t h e thought p r o c e s s e s w i t h i n dreaming might be modif ied

and one cou ld t e s t many Freudian ideas about t h e na tu re of d i s g u i s e symboli-

za t ion e t c Appropr ia te p o s t h y p n o t i c s u g g e s t i o n might overcome t h e s t i m u l u s

i n c o r p o r a t i o n b a r r i e r tha t now seems t o b lock o u t most s t i m u l i from t h e

d reamer s c o n s c i o u s n e s s and make i t p o s s i b l e t o g i v e i n s t r u c t i o n s t o t h e -S

w h i l e h e i s dreaming F i n a l l y a p o s s i b l e p r a c t i c a 1 a p p l i c a t i o n t h o s e s u f -

f e r i n g from n igh tmares might b e n e f i t from t h e p o s t h y p n o t i c s u g g e s t i o n t o wake

up as soon as a dream became f r i g h t e n i n g r a t h e r t h a n s u f f e r i n g through i t

A l l t h i s i s s p e c u l a t i o n o f c o u r s e b u t i t shows some d i r e c t i o n s r e s e a r c h cou ld

To sum up b r i e f l y P o s t h y p n o t i c s u g g e s t i o n a l t h o u g h f u l l y a p p l i c a b l e

w i t h o n l y a l i m i t e d number of Ss shows g rea t promise as a t e c h n i q u e f o r a f f e c t -

i n g and c o n t r o l l i n g t h e c o n t e n t o f s t a g e 1 dreaming and a t l e a s t one a spect of

p r o c e s s v i z awakening The e f f e c t s are f a s c i n a t i n g i n themse lves and of u s e

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

once they a r e pe r f ec t ed i n a v a r i e t y of func t iona l s t u d i e s of dreaming

Specula t ions

Most of u s and I am no except ion a r e somewhat r e t i c e n t about g e t t i n g away

from our hardI1 d a t a and specu la t i ng ve ry f a r ahead i n publ ic Since t h i s sym-

posium i s concerned wi th t h e neM f r o n t i e r s i n dream re sea rch though I w i l l con-

c lude my p r e s e n t a t i o n wi th a r r t a l l t a l e about a t reasure which may l i e j u s t

over t h e border This p a r t i c u l a r l l t r ea su re may l u r e some of u s on i n t o new

t e r r i t o r y and some of t h e e f f e c t s I have been desc r ib ing t0day may b e t h e t o o l s

which an explor ing p a r t y w i l l need t o d i scover t h i s t reasure

From seve ra l sources which t h e psychologis t i s no t l i k e l y t o run ac ros s i n

h i s normal course of a c t i v i t y (a l though Freud i n t h e I n t e r p r e t a t i o n of Dreams

does g i v e a s i n g l e l i n e t o mentioning and then promptly f o r g e t t i n g i t ) one

hears of a ve ry cur ious and i n t r i g u i n g phenomena which has been c a l l e d t h e l u c i d

dream The sources I p r i m a r i l y r e f e r t o a r e an o l d a r t i c l e and book by a Dutch

phys ic ian and man of l e t t e r s Freder ick van Eeden (1913 1918) and an o l d book

by an Engl ish gentlewoman Mary Arnold-Forster (1921) Both of them r e p o r t

having experienced many hundreds of dreams (and I use t h e word dream i n quo-

t a t i o n marks now) i n which they f e l t they were p e r f e c t l y conscious l u c i d and

i n possess ion of a l l t h e i r mental f a c u l t i e s I n a d d i t i o n they had t h e a b i l i t y

no t p r e sen t i n rea1 l i f e t o markedly modify t h e dream world i n which they

found themselves by a c t s of w i l l Throughout t he se l u c i d dreams they were

cont inuous ly conscious of t h e f a c t t h a t they were dreaming y e t t h e dream

world remained j u s t a s v i v i d and pa lpab le t o t h e i r senses a s o rd ina ry r e a l i t y

To g i v e you t h e f l a v o r of such a dream l e t m e quote b r i e f l y from van Eeden

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

On September 9 1904 I dreamt tha t I s tood a t a t a b l e b e f o r e a window On t h e t a b l e were d i f f e r e n t o b j e c t s I was p e r f e c t l y w e l l aware t h a t I was dream-i n g and I cons idered what s o r t s o f exper iments I could make I began by t r y i n g t o b reak g l a s s by b e a t i n g i t w i t h a s tone I p u t a s m a l l t a b l e t o f g l a s s on two s t o n e s and s t r u c k i t w i t h a n o t h e r s tone Yet i t would n o t break Then I took a f i n e c l a r e t g l a s s from t h e t a b l e and s t r u c k i t w i t h my f i s t w i t h a l l my might a t t h e same t ime r e f l e c t i n g how dangerous i t would b e t o do t h i s i n waking l i f e y e t t h e g l a s s remained whole But lo When I looked a t i t a g a i n a f t e r some t ime i t was broken

It broke a l l r i g h t b u t a l i t t l e t o o l a t e l i k e a n a c t o r who m i s s e s h i s cue Th is gave m e a v e r y c u r i o u s impress ion o f be ing i n a f a k e world c l e v e r l y i m i t a t e d b u t w i t h s m a l l f a i l u r e s I1 (van Eeden 1913 p 448)

What do we make of such a r e p o r t We have a s t r o n g tendency t o d i s c o u n t

i t a s t h e r a v i n g s o f t h e m e n t a l l y ill y e t c a r e f u l r e a d i n g o f t h e s e a u t h o r s

cannot h e l p b u t g i v e t h e impress ion t h a t t h e s e were e x c e p t i o n a l l y i n t e l l i g e n t

s u c c e s s f u l and s a n e people I have s i n c e found s e v e r a l c o l l e g e s t u d e n t s who have

had dreams o f varying degrees o f l u c i d i t y and even a p s y c h o l o g i s t o r two

While p robab ly r a r e t h e e x p e r i e n c e o f t h e l u c i d dream seems q u i t e r e a l and

t o me o f f e r s some e x c i t i n g i d e a s o f what may b e t h e u l t i m a t e t h a t can b e achieved

i n t h e c o n t r o l o f dreaming ( i f indeed l u c i d dreams occur i n s t a g e 1 s l e e p )

Much o f what I have r e p o r t e d on e a r l i e r can b e thought of a s t h e i n i t i a l s t e p s

toward a t e c h n i q u e o r t r a i n i n g system which could cu lmina te i n t h e p r o d u c t i o n o f

l u c i d dreamsll i n t h e l a b o r a t o r y and e x p l o r a t i o n o f t h e n a t u r e o f dreaming i t -

s e l f by means o f t h e l u c i d dream

S ince t i m e i s runn ing s h o r t I s h a l l purpose ly s a y no more abou t t h e l u c i d

dream and methods o f s t u d y i n g i t s c i e n t i f i c a l l y and perhaps t h i s l a c k o f

c l o s u r e w i l l s t i m u l a t e you t o t h i n k a b o u t t h i s phenomena and t h e u s e of pos t -

h y p n o t i c s u g g e s t i o n g e n e r a l l y i n t h i s a r e a t h a t w i l l g i v e m e t h e b e n e f i t of your

t h o u g h t s i n l a t e r d i s c u s s i o n

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

P r o g o f f I The Symbolic and t h e Real New York J u l i a n P r e s s 1963

Rech tschaf fen A amp Maron Louise The e f f e c t o f amphetamine on t h e s l e e p c y c l e EEG c l i n Neurophysiol 1964 -16 438-445

Rech tschaf fen A amp Verdone P Amount o f dreaming e f f e c t o f i n c e n t i v e a d a p t a t i o n t o l a b o r a t o r y and i n d i v i d u a l d i f f e r e n c e s I n p r e s s

S c h i f f S Bunney W amp Freedman D A s t u d y o f o c u l a r movements i n hypnot i - c a l l y induced dreams J nerv ment D i s 1961 133 59-68

Stoyva J The e f f e c t o f sugges ted dreams on t h e l e n g t h of r a p i d eye movement p e r i o d s Unpublished d o c t o r a l d i s s e r t a t i o n U n i v e r s i t y o f Chicago 1961

T a r t C Frequency o f dream r e c a l l and some p e r s o n a l i t y measures J c o n s u l t Psychol 1962 -26 467-470 (a)

T a r t C A comparison o f sugges ted dreams o c c u r r i n g i n hypnos i s and s l e e p Unpublished MA t h e s i s U n i v e r s i t y o f NC 1962 I n p r e s s I n t J c l i n exp Hypnosis (b )

T a r t C E f f e c t s o f p o s t h y p n o t i c s u g g e s t i o n on t h e p r o c e s s of dreaming Un-p u b l i s h e d doctora1 d i s s e r t a t i o n U n i v e r s i t y of NC 1963

T a r t C The i n f l u e n c e o f t h e exper imenta l s i t u a t i o n i n hypnos i s and dream r e s e a r c h a c a s e r e p o r t Amer J c l i n Hypnosis 1964 i n p r e s s

T a r t C The h y p n o t i c dream methodologica1 c o n s i d e r a t i o n s and a review o f t h e l i t e r a t u r e Unpublished ms

van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

van Eeden F The Br ide of Dreams New York Mi t che l l Kennerley 1918

West L Janszen H L e s t e r B amp Comelisoon F The psychos i s of s l e e p dep r iva t i on Ann NY Acad Sc iences 1962 2 66-70

Wood P Dreaming and s o c i a l i s o l a t i o n Unpublished d o c t o r a l d i s s e r t a t i o n Un ive r s i t y of N C 1962

References

Arno ld-Fors te r Mary S t u d i e s i n Dreams New York Macmillan 1921

Berger R amp Oswald I E f f e c t s o f s l e e p depr iva t ion on b e h a v i o r subsequent s l e e p and dreaming EEG c l i n Neurophysiol 1962 -14 297

Dement W The e f f e c t o f dream d e p r i v a t i o n Sc ience 1960 -131 1705-1707

Dement W amp Wolpert E The r e l a t i o n o f eye movements body m o t i l i t y and externa 1 s t i m u l i t o dream c o n t e n t J exp Psychol 1958 55 543-553-

Freud S The I n t e r p r e t a t i o n o f Dreams Trans by James Strachey London Al len amp Unwin 1954

Gresham S Webb W amp Will iams R Alcohol and ca f fe ine e f f e c t on i n f e r r e d v i s u a l dreaming Sc ience 1963 140 1226-1227

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van Eeden F A s t udy of dreams Proc Soc Psych Res 1913 -26 431-461

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