Effects of Healthy and Neuropathological Aging on Autobiographical Memory: A Meta-Analysis of Studies Using the Autobiographical Interview

Abstract Objectives A meta-analytic review was conducted to assess the effects of healthy aging, amnestic mild cognitive impairment (MCI), and Alzheimer’s disease (AD) on naturalistic autobiographical memory using the Autobiographical Interview, a widely used, standardized assessment that derives me...

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Bibliographic Details
Published in:	The journals of gerontology. Series B, Psychological sciences and social sciences Vol. 78; no. 10; pp. 1617 - 1624
Main Authors:	Simpson, Stephanie, Eskandaripour, Mona, Levine, Brian
Format:	Journal Article
Language:	English
Published:	US Oxford University Press 09-10-2023
Subjects:	Aged Aging - psychology Alzheimer Disease - psychology Editor's Choice Humans Memory, Episodic Mental Recall Neurodegenerative Diseases THE JOURNAL OF GERONTOLOGY: Psychological Sciences Aging Alzheimer’s disease Mild cognitive impairment Episodic memory Autobiographical memory Meta-analysis
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Summary:	Abstract Objectives A meta-analytic review was conducted to assess the effects of healthy aging, amnestic mild cognitive impairment (MCI), and Alzheimer’s disease (AD) on naturalistic autobiographical memory using the Autobiographical Interview, a widely used, standardized assessment that derives measures of internal (episodic) and external (nonepisodic) details from freely recalled autobiographical narratives. Methods A comprehensive literature search identified 21 aging, 6 MCI, and 7 AD studies (total N = 1,556 participants). Summary statistics for internal and external details for each comparison (younger vs older or MCI/AD vs age-matched comparison groups) and effect size statistics were extracted and summarized using Hedges’ g (random effects model) and adjusted for the presence of publication bias. Results The pattern of reduced internal and elevated external details in aging was robust and consistent across nearly all 21 studies. MCI and—to a greater extent—AD were associated with reduced internal details, whereas the external detail elevation faded with MCI and AD. Although there was evidence of publication bias on reporting of internal detail effects, these effects remained robust after correction. Discussion The canonical changes to episodic memory observed in aging and neurodegenerative disease are mirrored in the free recall of real-life events. Our findings indicate that the onset of neuropathology overwhelms the capacity of older adults to draw upon distributed neural systems to elaborate on past experiences, including both episodic details specific to identified events and nonepisodic content characteristic of healthy older adults’ autobiographical narratives.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1079-5014 1758-5368 1758-5368
DOI:	10.1093/geronb/gbad077