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Related Experiment Videos

Aging, source memory, and misrecollections.

Chad S Dodson1, Sameer Bawa, Scott D Slotnick

  • 1Department of Psychology, University of Virginia, Charlottesville, VA 22904-4400, USA. cdodson@virginia.edu

Journal of Experimental Psychology. Learning, Memory, and Cognition
|January 5, 2007
PubMed
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Older adults experience episodic memory deficits due to illusory recollection, where they misremember past events. This age-related memory impairment is not due to guessing but increased false memories.

Area of Science:

  • Cognitive Psychology
  • Neuroscience of Aging
  • Human Memory

Background:

  • Cognitive aging is frequently linked to declines in episodic memory function.
  • Understanding the mechanisms behind these age-related memory deficits is crucial for developing interventions.

Purpose of the Study:

  • To propose and test an "illusory recollection" account for age-related episodic memory impairments.
  • To investigate the role of misremembering past events in older adults' memory performance.

Main Methods:

  • Older adults listened to statements and were later tested on their recollection of the events.
  • A novel illusory recollection signal detection model was developed and compared to a standard model.
  • Source memory was assessed using source d' scores.

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Main Results:

  • Older adults exhibited a greater tendency for illusory recollections (misremembering) compared to younger adults.
  • The proposed illusory recollection model provided a superior fit to older adults' data than the standard model.
  • Age-related differences in source memory largely diminished when accounting for illusory recollections.

Conclusions:

  • Age-related source memory impairments may stem from an increased propensity for illusory recollections, not from reduced diagnostic information or increased guessing.
  • Older adults' memory deficits are characterized by a higher rate of misremembering past events.