A coordinated analysis of the associations among personality traits, cognitive decline, and dementia in older adulthood

Eileen K. Graham, Bryan D. James, Kathryn L. Jackson, Emily C. Willroth, Jing Luo, Christopher R. Beam, Nancy L. Pedersen, Chandra A. Reynolds, Mindy Katz, Richard B. Lipton, Patricia Boyle, Robert Wilson, David A. Bennett, Daniel K. Mroczek

Research output: Contribution to journalArticlepeer-review

Abstract

There are individual differences in the rates of cognitive decline across later adulthood. Personality traits are among the factors that may account for these differences. The current project investigated whether personality traits were associated with trajectories of cognitive decline, and whether the associations were different before and after dementia diagnosis. The data was analyzed using linear mixed effects regression. Across study aims is a focus on replicability and generalizability. Each question was addressed in four independent longitudinal studies (EAS, MAP, ROS, SATSA), then meta-analyzed, providing estimates of replicability. Results indicated that low neuroticism and high openness were associated with total cognitive function. We detected evidence for cognitive decline in all four samples, and openness was associated with decline post dementia diagnosis.

Original languageEnglish (US)
Article number104100
JournalJournal of Research in Personality
DOIs
StateAccepted/In press - 2021

Keywords

  • Cognitive ability
  • Cognitive aging
  • Coordinated analysis
  • Dementia
  • Personality traits

ASJC Scopus subject areas

  • Social Psychology
  • Psychology(all)

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