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Implicit and explicit memory in young and older adults.

L L Light1, A Singh

  • 1Pitzer College, Claremont, California 91711.

Journal of Experimental Psychology. Learning, Memory, and Cognition
|October 1, 1987
PubMed
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Older adults show memory decline in conscious recall tasks but not in automatic memory processes. Age impacts explicit memory, not implicit memory, suggesting distinct memory systems.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Development

Background:

  • Aging is associated with cognitive changes, particularly in memory functions.
  • Understanding age-related memory differences is crucial for cognitive health research.
  • Previous studies suggest varying impacts of aging on different memory types.

Purpose of the Study:

  • To compare implicit and explicit memory performance in young and older adults.
  • To investigate the effect of age on tasks requiring conscious recollection versus automatic activation.
  • To determine if age-related memory decrements are specific to certain memory tasks.

Main Methods:

  • Three experiments were conducted comparing young and older adults.
  • Implicit memory was assessed using word completion and perceptual identification tasks.

Related Experiment Videos

  • Explicit memory was assessed using free recall, cued recall, and recognition tasks.

    • Main Results:

    • Repetition priming effects in implicit memory tasks (word completion, perceptual identification) showed no significant age differences.
    • Significant age-related decrements were observed in explicit memory tasks (free recall, cued recall, recognition).
    • Performance patterns in older adults mirrored those seen in amnesic patients.

    Conclusions:

    • Older adults exhibit impairments in explicit memory tasks that rely on conscious recollection.
    • Implicit memory, dependent on automatic activation processes, appears relatively unaffected by age.
    • These findings support the dissociation between conscious and automatic memory systems in aging individuals.