Associations Between Loneliness and Cognitive Resilience to Neuropathology in Older Adults

Kathryn L Jackson, Jing Luo, Emily C Willroth, Anthony D Ong, Bryan D James, David A Bennett, Robert Wilson, Daniel K Mroczek, Eileen K Graham and Anne Krendl

The Journals of Gerontology: Series B, 2023, vol. 78, issue 6, 939-947

Abstract: ObjectivesLoneliness in the aging population is associated with decreased cognitive function and increased neuropathology; less is understood about the association of loneliness and cognitive resilience (CR), defined as the discordance between a person’s actual and expected cognition given their neuropathology. Here we assess the effect of loneliness and change in loneliness on CR at end of life and across older adulthood.MethodsData were combined from 2 longitudinal studies of older adults. CR proximate to death (CRlast_level) and across time (CRslope) was obtained by independently regressing global cognition and change in cognition onto multiple neuropathology indicators and extracting the resulting residuals. We used a series of simple linear regression models to assess the effect of loneliness level and change on CRlast_level and CRslope.ResultsHigher baseline loneliness was associated with lower CRlast_level (β = −0.11, 95% confidence interval [95% CI; −0.18, −0.04], p

Keywords: Cognition; Cognitive decline; Psychology; Social isolation (search for similar items in EconPapers)
Date: 2023
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