Evidence map›Paper›PMID 42663588›Full record

ArticleThe journals of gerontology. Series B, Psychological sciences and social sciences2026

Personality trait and state associations with cognitive functioning and variability in middle-aged and older adults.

Winkie Ma, Adam T Nissen, Zoe W Hawks, Daniel K Mroczek, Eileen K Graham, Emorie D Beck

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Article in The journals of gerontology. Series B, Psychological sciences and social sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Winkie MaDepartment of Psychology, University of California, Davis, California, United States.
Adam T NissenDepartment of Psychology, University of California, Davis, California, United States.
Zoe W HawksBrooklyn Health, Brooklyn, New York, United States.
Daniel K MroczekDepartment of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States.ORCID 0000-0003-3748-5059
Eileen K GrahamDepartment of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States.ORCID 0000-0003-3095-4625
Emorie D BeckDepartment of Psychology, University of California, Davis, California, United States.

Funding

Capturing social and cognitive health dynamics as digital risk biomarkers of Alzheimer's diseaseRF1AG088206 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BECK, EMORIE DANIELLE · 2025 to 2025
$3.4M
National Science Foundation BCS-2336406NIA NIH HHS 1RF1AG088206-01A1NIA NIH HHS RF1 AG088206
6 · The paper itself

Abstract

objectivesPersonality characteristics are recognized as early indicators of later cognitive functioning, yet existing studies have primarily focused on trait-level trends. How well these between-person differences uncover daily cognitive functioning processes remains unclear. Addressing this entails examining momentary personality states, which may accumulate over time to influence longer-term cognitive outcomes. Accordingly, this study investigates associations between personality traits and states and momentary cognitive functioning and variability.

methodsWe conducted a three-week ecological momentary assessment study of middle-aged and older adults (N = 183). We used Bayesian mixed-effects location scale models to capture contingencies between personality and momentary cognitive functioning/variability. Additionally, we used machine learning (elastic net regression) to identify profiles of personality state-cognition contingencies and individuals who exhibit stronger associations.

resultsAt the trait level, higher conscientiousness was associated with poorer working memory and processing speed. Higher openness was associated with better cognitive functioning and lower variability for episodic memory and processing speed. At the state level, conscientiousness was associated with better working memory performance, while neuroticism was associated with variable episodic memory functioning. Extraversion was associated with working and episodic memory functioning/variability. Finally, sociodemographic, health, and personality trait variables emerged as top predictors of individual differences in within-person associations. DISCUSSION: By investigating within-person associations between personality and cognitive ability, we demonstrate that trait-level associations do not necessarily generalize to state-level ones. Profiles of top predictors of individual differences in state-level associations may be promising targets for intervention, but interventions should be tailored with between- and within-person differences in mind.

Indexed as

AgingCognitionPersonalityAgedEcological Momentary AssessmentFemaleHumansMaleMemory, EpisodicMemory, Short-TermMiddle AgedProcessing SpeedBig Five personalityCognitive abilityExperience sampling methodologyMachine learningMixed-effects location scale models

Identifiers

PMID42663588
PMCPMC13652028

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.