Psychology of ageing Flashcards
People over 50 years of age are the fastest growing age group in the UK. By what year will nearly half of the UK population be over 50 years of age?
2031 - not far off
Why is immigration good for health economics?
- Ageing population
- Immigrants immediately start working (pay for ageing pop)
- Immigrants can’t claim benefits (min 2 years)
- Also immigrants haven’t claimed education/health costs previously
Briefly, what are the 3 main themes underlying psychology of ageing?
- Bio-psychology: focus = ageing of the CNS + associated decline of mental functions
- Bio-psycho-social approach: focus upon multiple sources of decline/vulnerability (physical health to social networks) + how individuals ‘adjust’
- Psychosocial approach: focus is upon ‘lifespan development’ and human character + personality across the whole lifespan
What does the bio-psychological approach suggest?
- Suggests that the ageing brain is the principle determinant of psychological changes associated with age
- Cross sectional evidence of loss of brain weight/cell numbers indicate loss/deterioration of brain power - ie. decline in cognitive skill
What part of the brain to do with memory and orientation is affected in ageing?
- Temporal lobe & hippocampus atrophy
- Important in orientation and place
- Suffer memory and orientation issues
- Doesn’t however interfere with ongoing functioning in normal ageing adult
What does research on intellectual decline in later life suggest?
- David Wechsler - scores on IQ tests were highest in early 20s + declined constantly afterwards
- When first longitudinal studies followed up people’s performance on tests at various times after initial testing, results indicated less decline (Owens, Schaie)
Both above were lab studies, if you test elder adults in real world you find the same performance as younger adults as they make up for it by altering their behaviour to make up for ‘an atrophied brain’. So don’t clinically expect elderly patients to have worse IQ.
What is the problem with the cross sectional approach?
- Flynn effect
- Cross section accentuates loss, due to cohort inequalities
- Eg. progressively more education received from 1890s to 1980s, so each cohort of 20 & 70 yr olds will be better educated than previous cohorts
What is the problem with longitudinal data?
- Longitudinal data collection minimises the evidence of decline
- As those who are willing to be re-tested tend to be healthier, wealthier + wiser than those who ‘drop out or die’
- -> Sample loss
Is intellectual decline normal?
Yes. There is evidence supported by both cross sectional + longitudinal studies of a drop in performance associated with greater age.
What kind of tasks are affected by intellectual decline in the elderly?
This is more noticeable for tasks requiring speed of processing than for tasks dependent upon acquired knowledge + established problem solving strategies. BUT remember assessment issues.
Does everybody follow the same path of intellectual decline?
- Not everyone follows such a path. Proportion of people exhibiting intellectual decline is small in a 50-60 y old population
- Becomes more common in ppl aged 80+, often referred to as the ‘old-old’
- Even then substantial numbers of 80+ people do not show evidence of intellectual decline
When is intellectual decline to be considered abnormal?
- Statistically intellectual decline is more abnormal when it occurs earlier in old age
- Slight intellectual decline while normal, should not interfere with older adults ongoing life to any great degree - where it does, pathological processes should be investigated.
- Distinction between normal & abnormal is not fixed: however the transition from maintained functioning to decline is usually one way.
What is meant by crystallised and fluid intelligence in terms of ageing and how they change?
- Wisdom = crystallised intelligence
- Wit = fluid intelligence
- Loss of wit is more common
- Lay perceptions suggest wisdom may even increase in older adults but research doesn’t support this
Recovery from progressive (vs acute) mental decline remains an elusive goal + many prefer to bank on primary prevention. How can we primarily prevent intellectual loss/decline?
Important use of intellect + enriched environment across the lifespan appears protective. Provide offspring with advantageous environment between ages of 0-12.
What is the main principle of Bernice Neugarten’s model?
Ageing is associated with physical, psychological and social loss, which require adjustment.