Cognitive Ageing

  • Created by: Anj_
  • Created on: 14-05-15 20:18
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  • Cognitive Ageing
    • Gerentology - the scientific study of ageing
      • According to gerontologists 60-65 is when physical and psychological changes take place
    • BROMLEY (1988)
      • With normal ageing, brain decreases in weight by 10-15%
    • Cross-sectional designs: Independent groups but cohort effects are involved
      • - different standards of healthcare      - changes in education/ technology
    • Longitudinal designs: Repeated measures but practice effects are involved
      • Also drop out due to death/illness/moving away
    • Language is the only thing which does not decline with age
    • SALTHOUSE (2005): The effect of ageing on reasoning
      • Comprehension - don't understand what is required of them
      • Slower at processing and responding
      • Strategy may be different
    • MAY ET AL. (1999)
      • Age-related decline on WM tasks is due to inhibiting irrelevant information
    • Episodic memory - memory of a specific event
      • Declines with age
    • NAVEH-BENJAMIN (2000)
      • Associative deficit hypothesis - older adults have difficulty associating information together
        • Recollection is a slower process
          • Cells in hippocampi die with age so rely on familiarity
    • Prospective Memory - remembering to do something in the future
      • perform ongoing task but divert memory
      • What = action When = cue to perform
        • what = buy milk when = after lecture
        • Self-initiate action
      • Older adults show higher commitment to completing tasks
    • Semantic Memory - factual and general knowledge
      • vocabulary
      • Does not decline with age but changes still seen
        • Increased difficulty with word finding - tip of the toungue
    • Not meaningful to talk about processing speed independent of the task
    • How do you compensate for declines?
      • 1. Episodic memory ~ strategy training  2.Prospective Memory ~ external aids


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