Journal Article

FZJ-2021-02849

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Population variability in social brain morphology for social support, household size and friendship satisfaction

Taebi, A. ; Kiesow, H. ; Vogeley, K.FZJ* ; Schilbach, L. ; Bernhardt, B. C. ; Bzdok, D. (Corresponding author)

2020
Oxford Univ. Press Oxford

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Please use a persistent id in citations: http://hdl.handle.net/2128/28031  doi:10.1093/scan/nsaa075

Abstract: The social brain hypothesis proposes that the complexity of human brains has coevolved with increasing complexity of social interactions in primate societies. The present study explored the possible relationships between brain morphology and the richness of more intimate ‘inner’ and wider ‘outer’ social circles by integrating Bayesian hierarchical modeling with a large cohort sample from the UK Biobank resource (n = 10 000). In this way, we examined population volume effects in 36 regions of the ‘social brain’, ranging from lower sensory to higher associative cortices. We observed strong volume effects in the visual sensory network for the group of individuals with satisfying friendships. Further, the limbic network displayed several brain regions with substantial volume variations in individuals with a lack of social support. Our population neuroscience approach thus showed that distinct networks of the social brain show different patterns of volume variations linked to the examined social indices.

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Contributing Institute(s):

1. Kognitive Neurowissenschaften (INM-3)

Research Program(s):

1. 5251 - Multilevel Brain Organization and Variability (POF4-525) (POF4-525)

Appears in the scientific report 2021

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