principle b delays as a processing problem: evidence from task
TRANSCRIPT
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Principle B Delays as a processing problem:Evidence from task effects
Sergio Baauw &
Shalom ZuckermanShalom Zuckerman
Utrecht University
DGfS, Osnabrueck 4-6 March 2009
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Delay of Principle B Effect
Children often allow pronouns to corefer with
local c-commanding antecedents (Chien & Wexler
1990).1990).
(1) a. The boy touched him 50% correct
b. The boy touched himself 100% correct
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Delay of Principle B Effect
It has been claimed that these errors are not due
to any problem with Principle B, but with a
principle that constrains local coreference to principle that constrains local coreference to
special contexts (Chien & Wexler 1990; Grodzinsky &
Reinhart 1993):
(2) Everybody hates Oscar. John hates him,
Mary hates him, even Ocar hates him.
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Delay of Principle B Effect: explanations
Three kinds of accounts:
1. Incomplete acquisition
2. Experimental artifact
3. Limited processing resources
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Delay of Principle B Effect: explanations
Incomplete acquisition
Children accept local coreference because they
have not yet acquired a pragmatic principle,
Principle P, that contextually constrains local
coreference (Chien & Wexler 1990).
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Delay of Principle B Effect: explanations
Incomplete acquisition
� The DPBE does not show up in production
(Bloom et al. 1994).
� The DPBE is not limited to children; it shows
up in aphasia too (Reinhart & Grodzinsky 1993;
Ruigendijk et. al 2006; Baauw & Cuetos 2003).
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Delay of Principle B Effect: explanations
Experimental artifact
Children often allow local coreference because of
deficiencies in the experimental set up (Conroy,
Takahashi, Lidz & Phillips 2006).
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Delay of Principle B Effect: explanations
Experimental artifact
Experiments using the Truth Value Judgment
Task (TVJ) typically present stories to the
child in which both a potential sentence
internal and external antecedent appears for
the pronoun.
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Delay of Principle B Effect: explanations
Experimental artifact
However, according to Conroy at al., many However, according to Conroy at al., many experiments failed to make the sentence external antecedent as prominent as the sentence internal antecedent.
� Do not really comply with plausible dissent(Crain & Thornton 1998).
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Delay of Principle B Effect: explanations
Experimental artifact
Example TVJ (Thornton & Wexler 1999).Example TVJ (Thornton & Wexler 1999).
Bert and 3 reindeer friends have a snowball fight and they all get covered in snow. When they go inside Bert is shivering, so he asks the reindeer to brush the snow off him. Two of the reindeer separately refuse, saying that they have too much snow to deal with, and they brush themselves. The third reindeer helps Bert a little bit, but then brushes the snow off himself. Bert thanks the helpful reindeer for starting to brush him. He says he’s sorry he can’t reciprocate by helping brush the reindeer; he needs finish brushing all the snow off himself because he’s still very cold.
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Delay of Principle B Effect: explanations
Experimental artifact
Example TVJ (Thornton & Wexler 1999).
Test sentence:
I think Bert brushed him.
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Delay of Principle B Effect: explanations
Experimental artifact
Comments Conroy et al:Comments Conroy et al:
- Children will try to access “referential” reading (him = 3rd reindeer).
- However, story is about Bert, trying to get brushed; posibility of reindeer being brushed by Bert is not a likely outcome anywhere in the story.
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Delay of Principle B Effect: explanations
Experimental artifact
In sum: sentence internal antecedent (him = Bert) In sum: sentence internal antecedent (him = Bert) is better accessible than sentence external antecedent (him = reindeer), which need to be accessed in order to justify a “no”-answer.
This leads children to accept local coreference interpretation; 58% “yes”-responses.
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Delay of Principle B Effect: explanations
Experimental artifact
Prediction: DPBE will disappear when sentence
external and internal antecedent are made
equally accessible/prominent.
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Delay of Principle B Effect: explanations
Experimental artifact
General story line:Hiking Smurf, Tennis Smurf, Tennis Smurf and three dwarfs are invited at a
painting contest at a party. All participants discuss the color of paint to
use to get painted. Hiking Smurf has no paint and asks first Happy, then
Dopey and finally Grumpy (dwarfs) to paint him. The first two do (after
the painted themselves), but Grumpy refuses even to go to the party, so
he doensn’t need to get painted. After the other dwarfs convinced him
to get painted, ans finishes all the paint. Hiking Smurf asks Grumpy for
some paint, but he Grumpy apologizes that he cannot. Then he asks
Tennis Smurf for some paint, and he obliges.
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Delay of Principle B Effect: explanations
Experimental artifact
Test sentence: Ok, this was a story about
painting. Hiking Smurf didn’t have any paint,
and Grumpy almost didn’t go to the party. Let
me see…I think Grumpy painted him.
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Delay of Principle B Effect: explanations
Experimental artifact
Advantage improved TVJ:Advantage improved TVJ:
- Deictic reading of pronoun can easily be construed: Hiking Smurf is highly accessible, since he was the one being painted by most dwarfs, but not by Grumpy.
- Anaphoric reading also available: each character draws attention to this need to paint himself, drama around Grumpy’s refusal
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Delay of Principle B Effect: explanations
Experimental artifact
Results: 11% “yes”-responses.
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Delay of Principle B Effect: explanations
Unexpected if DPBE were an artifact
1. The DPBE is subject to cross-linguistic 1. The DPBE is subject to cross-linguistic variation. It does not show up in Spanish (2), neither in children, nor in aphasics (Baauw &
Escobar 1997; Baauw & Cuetos 2003).
(2) La niña la señala 90% correct
the girl her points-at
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Delay of Principle B Effect: explanations
Unexpected if DPBE were an artifact
2. It is structure sensitive. The DPBE is much 2. It is structure sensitive. The DPBE is much
stronger in ECM contexts (Philip & Coopmans 1996).
(3) Jan ziet hem dansen 20% correct
rejections of the reflexive reading
‘John sees him dance’
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Delay of Principle B Effect: explanations
Unexpected if DPBE were an artifact
3. Also, in ECM contexts the DPBE even shows 3. Also, in ECM contexts the DPBE even shows up in languages such as Spanish, both in children and in aphasics (Baauw & Escobar 1997;
Baauw & Cuetos 2003).
(4) La niña la ve bailar 50% correct
the girl her sees dance
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
• Children respect Principle B, rejecting local • Children respect Principle B, rejecting local binding of pronouns.
• Children have problems with the applicationof a syntax-discourse principle regulating local coreference, Rule I (Grodzinsky & Reinhart
1993).
• This rule is invoked whenever local coreference is an option.
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
• Syntactic clitics do not easily allow local • Syntactic clitics do not easily allow local
coreference, hence Rule I will not be invoked.
• Since local binding is blocked by Principle B,
Romance children (and aphasics) will reject a
reflexive interpretation of (5).
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
(5) La niña la señala 90% correct(5) La niña la señala 90% correct
the girl her points-at
‘The girl is pointing at her.’
(Baauw & Escobar 1997; Baauw & Cuetos 2003)
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
ECM constructions lead to additional errors, ECM constructions lead to additional errors, since “reflexivity” Principle B does not play a role in ruling out local binding (Reinhart & Reuland
1993).
(6) John saw [him dance]
� him and John belong to different predicates
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
Local binding ruled out by condition on A-Chains: Local binding ruled out by condition on A-Chains:
Chain formation between underspecified SE
and Jan (narrow syntax) is a cheaper way of
establishing a referential dependency than a
bound variable relation between him and
John (Reuland 1998).
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
So (6) blocks (7).So (6) blocks (7).
(6) Jan zag [zich dansen] ‘John saw SE dance’
|_______|
A-Chain
(7) Jan zag [hem dansen] ‘John saw him dance’
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
In young children, and agrammatics narrow syntax is not In young children, and agrammatics narrow syntax is not
always the cheapest option (Avrutin 2001), hence a
bound-variable reading of (8) will often be accepted,
even in languages with clitics (Baauw & Escobar 1997):
(8) La niña la ve bailar
the girl her sees dance
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
If limited processing resources are the source of If limited processing resources are the source of the DPBE, children (and agrammatics) are expected to perform better with experimental methods that impose low processing load, such as Picture Selection Task (PS), than experimental methods imposing high processing load, such as Truth Value Judgment Task (TVJ).
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
PS: child sees 3 pictures and has to choose the
one that best depicts the test sentence. One
of the pictures represented a “reflexive”
action, another one a “transitive” action (a
third one represented an unrelated action).
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Delay of Principle B Effect: explanations
DPBE is due to processing limitations
TVJ: child sees a single picture and has to judge
whether an accompanied sentence correctly
describes this picture
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Delay of Principle B Effect: Experiments
Experiment 1
Aim: compare Spanish children’s performance in PS on Aim: compare Spanish children’s performance in PS on simple pronominal and ECM sentences, with earlier TVJ studies: TVJ-1 (Baauw & Escobar 1997; Baauw &
Cuetos 2003), TVJ-2 (Baauw 2000) and TVJ-3 (Baauw & Alija
2005).
Subjects PS study: 32 5-year old Spanish speaking children
Items: 62 items, 4 sentence types (reflexives, pronouns in transitive sentences and ECM constructions, fillers)
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Delay of Principle B Effect: Example PS
Primero la niña y la mujer bailaron, y luego la niña la pinta. [First
the girl and the mother danced and then the girl painted her]
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Delay of Principle B Effect: Example PS
Primero la niña y la mujer bailaron, y luego la niña la pinta. [First
the girl and the mother danced, and then the girl painted her]
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Delay of Principle B Effect: Example TVJ
Mmm…una niña y una madre.
La niña la seca? [Is the girl
drying her?]
Adult response: YES
Mmm…una niña y una madre.
La niña la seca? [Is the girl
drying her?]
Adult response: NO
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Delay of Principle B Effect: Experiments
Results PS vs. TVJ
90
100
0
10
20
30
40
50
60
70
80
90
PS TVJ-1 TVJ-2 TVJ-3
Pron
ECM
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Delay of Principle B Effect: Experiments
Results PS vs. TVJ
• Ceiling effects for Pron condition, both PS and
TVJ.
• For ECM, more target-like performance on PS
(75% correct) than TVJ (around 50% correct).
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Delay of Principle B Effect: Experiments
Experiment 2
Aim: compare Spanish agrammatics’ performance in PS Aim: compare Spanish agrammatics’ performance in PS on simple pronominal and ECM sentences, with earlier TVJ study (Baauw & Cuetos 2003).
Subjects PS study: 7 adult Spanish speaking agrammatic Broca’s aphasic patients (age range: 47 – 68 years, mean age 52).
Items: 100 items, 4 sentence types (reflexives, pronouns in transitive sentences and ECM constructions, fillers)
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Delay of Principle B Effect: Experiments
Results PS vs. TVJ
80
90
0
10
20
30
40
50
60
70
80
PS TVJ
Pron
ECM
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Delay of Principle B Effect: Experiments
Results PS vs. TVJ
• Highly targetlike performance on Pron
condition, both PS and TVJ.
• For ECM, more target-like performance on PS
(61% correct) than TVJ (21% correct).
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Delay of Principle B Effect: Experiments
Experiment 3
Aim: test Dutch children’s performance with a test in Aim: test Dutch children’s performance with a test in
which PS and TVJ items alternate.
Subjects: 20 4-6-year old Dutch speaking children
Items: 36 items, 3 sentence types (pronouns in transitive
sentences, ECM, Fillers) and two methods (PS, TVJ).
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Delay of Principle B Effect: Example TVJ
Een groene en een paarse tele-
tubby… Ik denk dat de paarse
hem knuffelt. [I think that the
purple one is hugging him]
Adult response: NO
Een groene en een paarse tele-
tubby… Ik denk dat de paarse
hem knuffelt. [I think that the
purple one is hugging him]
Adult response: YES
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Delay of Principle B Effect: Example PS
In welk plaatje ziet de paarse tubby hem touwtje springen? [In
which picture does the purple tuby see him jump-rope?]
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Delay of Principle B Effect: Experiments
Results PS vs. TVJ
70
80
0
10
20
30
40
50
60
70
PS TVJ
Pron
ECM
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Delay of Principle B Effect: Experiments
Results PS vs. TVJ
• For both ECM and Pron more target-like
performance on PS than TVJ.
• Significant effect of methodology
(F=19.504,P=.000) as well as an effect of
structure (F=30.009,P=.000).
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Conclusion
� The results support a processing account for the
DPBE phenomenon. If children’s (and agrammatics’)
problem were one of missing knowledge, problem were one of missing knowledge,
methodology should not have mattered.
� TVJ imposes a higher processing load than PS,
since only with the former method subjects are
forced to establish and evaluate a reflexive reading
(local coreference / bound variable), which for
processing reasons is complicated (Grodzinsky &
Reinhart 1993; Reuland 1998), hence a stronger DPBE is
found with this method.
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Relevance for production
� In production the child is not forced to consider the
possibility of local coreference/binding reading (as in
TVJT), it is not even “invited” to do so (as in PS TVJT), it is not even “invited” to do so (as in PS
tasks).
� A child who wants to express a “reflexive” meaning
will most likely select a reflexive pronoun straight
away.
� If a child wants to express a non-reflexive meaning,
pronouns are the only option.
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Thanks to:
� Anne Frank School, Bunnik, Netherlands
� Colegio San Ignacio, Oviedo, Spain� Colegio San Ignacio, Oviedo, Spain
� University of Málaga/CIMES
� Urbamin, Elcano (Navarra)
� NWO (Dutch Organization of Scientific
Research)
� Sergey Avrutin, Marcelo Berthier,
Fernando Cuetos, Christina Green, Julián
Hinojosa, Joke de Lange, Alicia Pérez,
Esther Ruigendijk, Nada Vasic
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Thank you!