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Gray Matter Volume Covariance Networks, Social Support, and Cognition in Older Adults

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  • Kelly CottonBS
  • Joe VergheseMBBS
  • Helena M Blumen
  • Angela Gutchess

Abstract

ObjectiveWe examined the neural substrates of social support in older adults. Social support is associated with better outcomes in many facets of aging—including cognitive and functional health—but the underlying neural substrates remain largely unexplored.MethodsVoxel-based morphometry and multivariate statistics were used to identify gray matter volume covariance networks associated with social support in 112 older adults without dementia (M age = 74.6 years, 50% female), using the Medical Outcomes Study Social Support Survey.ResultsA gray matter network associated with overall social support was identified and included prefrontal, hippocampal, amygdala, cingulate, and thalamic regions. A gray matter network specifically associated with tangible social support (e.g., someone to help you if you were confined to bed) was also identified, included prefrontal, hippocampal, cingulate, insular, and thalamic regions, and correlated with memory and executive function.DiscussionGray matter networks associated with overall and tangible social support in this study were composed of regions previously associated with memory, executive function, aging, and dementia. Longitudinal research of the interrelationships between social support, brain structure, and cognition is needed, but strengthening social support may represent a new path toward improving cognition in aging that should be explored.

Suggested Citation

  • Kelly CottonBS & Joe VergheseMBBS & Helena M Blumen & Angela Gutchess, 2020. "Gray Matter Volume Covariance Networks, Social Support, and Cognition in Older Adults," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 75(6), pages 1219-1229.
    • Handle: RePEc:oup:geronb:v:75:y:2020:i:6:p:1219-1229.
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    File URL: http://hdl.handle.net/10.1093/geronb/gbz023
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    References listed on IDEAS

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    1. Sherbourne, Cathy Donald & Stewart, Anita L., 1991. "The MOS social support survey," Social Science & Medicine, Elsevier, vol. 32(6), pages 705-714, January.
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