adjusting for the cognitive effects of normal aging in the work place janet leathem & bridget...
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Adjusting for the Cognitive Effects of Normal Aging in the
Work Place
Janet Leathem & Bridget Burmester
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Demographics
• Population of older individuals (60+) rose from 205 million in 1950 to 606 million in 2000 (UN, 2002). Projected to reach the 2 billion mark by 2050.
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DemographicsWHO Trends in Global Ageing
8% 9%10%
12%13%
14%16%
19%
23%
25%26%
4% 4% 4% 4% 4% 5% 6%8%
10%
13%15%
0%
5%
10%
15%
20%
25%
30%
1950 1970 1990 2010 2030 2050
Developed World Developing World
Percent of PopulationAged 65 & Over: History and UN Projection
Source: UN (2005)
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Demographics Population % over 65 years
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DemographicsLife expectancy
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Living arrangements of the elderlyPercentage of Single member Households of all households with at least one
person aged 65 or more by World Bank category
0
5
10
15
20
25
30
35
40
45
50
GR
C
ES
PIT
A
AU
S
GB
RF
RA
DE
U
NLD
SW
E
ZA
F
MY
ST
UR
MU
S
ME
XE
ST
RU
S
MA
RLK
A
CH
N
BR
AB
IH
GE
O
UK
RIN
D
PA
K
BG
DE
TH
GH
A
KE
NT
CD
High Upper-Middle Lower-Middle Low
World Bank category
Percent
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Demographics: Workforce
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Demographics: Workforce
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CLOCKING ON Meet Sally
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Life SpanAge Changes in Cognition
• Verbal Abilities– rise gradually, peak at 50 & small declines after 55
General Knowledge
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Life SpanAge Changes in Cognition
• Verbal Abilities– rise gradually, peak at 50 & small declines after 55
• Performance Abilities– slow decline mid 30’s, > after 50-60
• Working Memory – slow decline after 45, visual > verbal
• Processing Speed – decline begins at 20, accelerating after 35
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Life SpanAge Changes in Cognition
• Verbal Abilities– rise gradually, peak at 50 & small declines after 55
• Performance Abilities– slow decline mid 30’s, > after 50-60
• Working Memory & Complex Attention– slow decline after 45
• Processing Speed – decline begins at 20, accelerating after 35
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Life SpanAge Changes in Cognition
• Processing Speed – decline begins at 20, accelerating after 35
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Life SpanAge Changes in Cognition
Verbal Abilities
Performance Skills
Processing Speed
Working Memory
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Life SpanAge Changes in Cognition
Verbal Abilities
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Life SpanAge Changes in Cognition
Verbal Abilities
Performance Skills
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Life SpanAge Changes in Cognition
Verbal Abilities
Performance Skills
Working Memory
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Life SpanAge Changes in Cognition
Verbal Abilities
Performance Skills
Working Memory
Processing Speed
ComplexAttention
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Life SpanAge Changes in Cognition
• Processing Speed – decline begins at 20, accelerating after 35
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Study Aims
• Comparison between self report and questionnaire endorsement of EMC’s
• Nature and levels of distress associated with self report of EMC’s
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Burmester, B., Leathem, J & Merrick, P. (in press) Assessing subjective memory complaints: A comparison of spontaneous reports and structured questionnaire methods.International Psychogeriatrics.
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The Memory Survey What people forget
• Whether or not they’ve done something• Where they’ve put things• What they were doing• Telephone numbers & facts• What they’ve been told, seen or read• How to do/operate things• Not recognising people
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Bottom Line
• Feedback• Acceptance & Awareness
– Attend– Allow time– Organise, plan & simplify to assist learning– Compensate– Don’t stress
• Stay active mentally and physically• Eat well
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CLOCKING ON Meet Sally
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