Five-Factor Model Personality Traits and the Trajectory of Episodic Memory: Individual-Participant Meta-Analysis of 471,821 Memory Assessments from 120,640 Participants

Angelina R Sutin, Justin Brown, Martina Luchetti, Damaris Aschwanden, Yannick Stephan, Antonio Terracciano and Shevaun Neupert

The Journals of Gerontology: Series B, 2023, vol. 78, issue 3, 421-433

Abstract: ObjectivesFive-factor model (FFM) personality traits are associated with concurrent memory function and risk of incident dementia but are less consistently associated with the change in episodic memory. The present research analyzes multiple large-scale studies with a consistent analytic approach to evaluate the association between personality and change in episodic memory over time.MethodAcross nine public longitudinal data sets, 120,640 participants provided 471,821 memory assessments over up to 26 years (age range 18–108). FFM traits were tested as predictors of the average level (intercept) and change over time (slope) of episodic memory. Results from the individual samples were meta-analyzed to summarize the associations.ResultsConsistent with expectations for the intercept, higher neuroticism was associated with worse memory performance, whereas higher openness and conscientiousness were associated with better performance; extraversion and agreeableness were also associated with better performance. Higher neuroticism and lower conscientiousness were related to declines in memory only in samples with more than two assessments of memory. The other three traits were unrelated to memory slope. The pattern was similar when participants with dementia were excluded from the analysis, and the association with the slope was not moderated by age.DiscussionFFM traits have a robust association with average memory performance. Higher neuroticism and lower conscientiousness were associated with declines in memory performance only among samples with more than two memory assessments. The heterogeneity across studies suggests that multiple memory assessments are needed to reliably detect change over time, which may be one reason for past inconsistencies across studies.

Keywords: Cognitive aging; Conscientiousness; Memory decline; Neuroticism (search for similar items in EconPapers)
Date: 2023
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