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Aging, source memory, and the experience of "remembering".

Beatrice G Kuhlmann1, C Dennis Boywitt1

  • 1a School of Social Sciences, Department of Psychology , University of Mannheim , Mannheim , Germany.

Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
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Summary
This summary is machine-generated.

Older adults show source memory for meaningful speaker details, similar to younger adults, but it plays a less significant role in their retrieval experiences.

Keywords:
Cognitive agingbindingrecollectionremember/knowsource memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience of Aging
  • Human Memory

Background:

  • Source memory, the recollection of contextual details associated with an event, is crucial for distinguishing true memories from imagined ones.
  • Previous research indicated that perceptual source memory differentiates younger and older adults' recollective (remember) versus familiarity-based (know) experiences.
  • The role of meaningful source memory, such as speaker identity, in differentiating age-related retrieval experiences remains less understood.

Purpose of the Study:

  • To investigate whether memory for meaningful speaker sources supports recollective experiences in older adults.
  • To compare source memory abilities between younger and older adults in relation to their subjective retrieval experiences (remember vs. know).
  • To determine if age differences in source memory relevance exist for retrieval experiences.

Main Methods:

  • Two experiments were conducted with younger (17-30 years) and older (64-81 years) adults.
  • Participants completed memory tasks involving distinguishing between male and female speakers (Experiment 1) and recalling bound information about speakers and their facial expressions (Experiment 2).
  • Subjective (remember/know) and objective source memory performance were assessed.

Main Results:

  • Memory for specific speakers (male/female) and bound speaker-facial expression information distinguished between younger and older adults' remember/know reports.
  • This indicates a common basis for retrieval experiences across age groups.
  • Older adults exhibited lower objective source memory and confidence than younger adults, even when reporting recollective experiences.

Conclusions:

  • Meaningful source memory, specifically for speaker identity and associated features, contributes to recollective experiences in both younger and older adults.
  • Despite this commonality, source memory appears less critical for older adults' retrieval experiences compared to younger adults.
  • These findings highlight both shared and age-specific mechanisms in memory retrieval and source monitoring.