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Three-year changes in leisure activities are associated with concurrent changes in white matter microstructure and perceptual speed in individuals aged 80 years and older
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Max Planck Institute for Human Development, Germany.
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
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Number of Authors: 8
2016 (English)In: Neurobiology of Aging, ISSN 0197-4580, E-ISSN 1558-1497, Vol. 41, 173-186 p.Article in journal (Refereed) Published
Abstract [en]

Accumulating evidence suggests that engagement in leisure activities is associated with favorable trajectories of cognitive aging, but little is known about brain changes related to both activities and cognition. White matter microstructure shows experience-dependent plasticity and declines in aging. Therefore, we investigated the role of change in white matter microstructure in the activities-cognition link. We used repeated assessments of engagement, perceptual speed, and white matter microstructure (probed with diffusion tensor imaging) in a population-based sample of individuals over 80 years without dementia (n = 442, M-age = 85.1; n = 70 for diffusion tensor imaging; 2 occasions 3 years apart). Using multivariate latent change modeling, we observed positive correlations among changes in predominantly social activities, white matter microstructure, and perceptual speed. Interindividual differences in change in white matter microstructure statistically accounted for the association between change in leisure activities and change in perceptual speed. However, as analyses are based on observational data from 2 measurement occasions, causality remains unclear.

Place, publisher, year, edition, pages
2016. Vol. 41, 173-186 p.
Keyword [en]
Leisure activities, White matter microstructure, Perceptual speed, Longitudinal, Structural equation modeling
National Category
Clinical Medicine Basic Medicine
Identifiers
URN: urn:nbn:se:su:diva-130858DOI: 10.1016/j.neurobiolaging.2016.02.013ISI: 000375129400018PubMedID: 27103530OAI: oai:DiVA.org:su-130858DiVA: diva2:934722
Available from: 2016-06-09 Created: 2016-06-07 Last updated: 2016-06-09Bibliographically approved

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