Age Trajectories of Perceptual Speed and Loneliness: Separating Between-Person and Within-Person Associations.

Autor:	Drewelies J; Department of Psychology, Humboldt University of Berlin, Berlin, Germany., Windsor TD; College of Education, Psychology and Social Work Flinders University, Adelaide, South Australia, Australia., Duezel S; Max Planck Institute for Human Development, Berlin, Germany., Demuth I; Charité-Universitätsmedizin Berlin, Berlin, Germany., Wagner GG; Max Planck Institute for Human Development, Berlin, Germany.; German Socio-Economic Panel Study (SOEP), Berlin, Germany., Lindenberger U; Max Planck Institute for Human Development, Berlin, Germany.; Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany and London, UK., Gerstorf D; Department of Psychology, Humboldt University of Berlin, Berlin, Germany.; German Socio-Economic Panel Study (SOEP), Berlin, Germany., Ghisletta P; University of Geneva, Geneva, Switzerland.; Swiss National Center of Competence in Research LIVES, University of Geneva, Geneva, Switzerland.
Jazyk:	angličtina
Zdroj:	The journals of gerontology. Series B, Psychological sciences and social sciences [J Gerontol B Psychol Sci Soc Sci] 2022 Jan 11; Vol. 77 (1), pp. 118-129.
DOI:	10.1093/geronb/gbab180
Abstrakt:	Objectives: We aimed at examining between-person and within-person associations across age trajectories of perceptual speed and loneliness in old age. Method: We applied multilevel models to 4 waves of data collected over 6 years from 1,491 participants of the Berlin Aging Study II (60-88 years at baseline, 50% women) to disentangle between-person and within-person associations across age trajectories of perceptual speed and both emotional and social loneliness. Sex and education were considered as relevant individual characteristics and included as covariates in the model. Results: Analyses revealed that on average perceptual speed exhibited moderate within-person age-related declines, whereas facets of loneliness were rather stable. Perceptual speed did not predict age trajectories of emotional or social loneliness, at either the between- or within-person level. In contrast, loneliness discriminated individuals at the between-person level, such that those feeling emotionally or socially more lonely showed lower cognitive performance than those feeling emotionally or socially less lonely. Predictive effects of social loneliness were stronger for relatively young people (i.e., in their mid to late 60s) than for relatively older participants (i.e., in their 80s). In addition, predictive effects of social loneliness for perceptual speed at the within-person level were modest and deviated in direction and size from between-person social loneliness effects among those in their mid- to late 60s, whereas they did not among those in their 80s. Discussion: We conclude that loneliness may serve as a precursor for basic cognitive functioning in old age and suggest routes for further inquiry. (© The Author(s) 2021. Published by Oxford University Press on behalf of The Gerontological Society of America.)
Databáze:	MEDLINE
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