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Social belonging: Brain structure and function is linked to membership in sports teams, religious groups and social clubs

Carolin Kieckhaefer, Leonhard Schilbach, Danilo Bzdok
doi: https://doi.org/10.1101/2021.09.06.459167
Carolin Kieckhaefer
1LVR Klinikum Düsseldorf / Department of Psychiatry and Psychotherapy, Heinrich-Heine-University, Düsseldorf, Germany
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Leonhard Schilbach
1LVR Klinikum Düsseldorf / Department of Psychiatry and Psychotherapy, Heinrich-Heine-University, Düsseldorf, Germany
2Ludwig Maximilians University, Munich, Germany
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Danilo Bzdok
3Montreal Neurological Institute (MNI), McConnell Brain Imaging Centre, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
4Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
5Mila - Quebec Artificial Intelligence Institute, Montreal, Quebec, Canada
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  • For correspondence: danilobzdok@gmail.com
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Abstract

Human behaviour across the life span is driven by the psychological need to belong, from kindergarten to bingo nights. Being part of social groups constitutes a backbone for communal life, and confers many benefits for physical and mental health. Capitalizing on neuroimaging and behavioural data from ~40.000 participants from the UK Biobank population cohort, we used structural and functional analyses to explore how social participation is reflected in the human brain. Across three different types of social groups, structural analyses point towards variance in ventromedial prefrontal cortex, fusiform gyrus and anterior cingulate cortex as structural substrates tightly linked to social participation. Functional connectivity analyses emphasized the importance of default mode and limbic network, but also showed differences for sports teams and religious groups as compared to social clubs.

Taken together, our findings establish the structural and functional integrity of the default mode network as a neural signature of social belonging.

Competing Interest Statement

This project has been made possible by the Brain Canada Foundation, through the Canada Brain Research Fund, as well as by NIH grant R01AG068563A and the Canadian Institutes of Health Research. DB was also supported by the Healthy Brains Healthy Lives initiative (Canada First Research Excellence fund), and by the CIFAR Artificial Intelligence Chairs program (Canada Institute for Advanced Research), as well as Research Award and Teaching Award by Google.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted September 07, 2021.
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Social belonging: Brain structure and function is linked to membership in sports teams, religious groups and social clubs
Carolin Kieckhaefer, Leonhard Schilbach, Danilo Bzdok
bioRxiv 2021.09.06.459167; doi: https://doi.org/10.1101/2021.09.06.459167
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Social belonging: Brain structure and function is linked to membership in sports teams, religious groups and social clubs
Carolin Kieckhaefer, Leonhard Schilbach, Danilo Bzdok
bioRxiv 2021.09.06.459167; doi: https://doi.org/10.1101/2021.09.06.459167

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