Dissecting social interaction:Dual-fMRI reveals patterns of interpersonal brain-behavior relationships that dissociate among dimensions of social exchange


During social interactions, each individual’s actions are simultaneously a consequence of and an antecedent to their interaction partner’s behavior. Capturing online the brain processes underlying such mutual dependency requires simultaneous measurements of all interactants’ brains during real-world exchange (‘hyperscanning’). This demands a precise characterization of the type of interaction under investigation, however, and analytical techniques capable of capturing interpersonal dependencies. We adapted an interactive task capable of dissociating between two dimensions of interdependent social exchange: goal structure (cooperation vs competition) and interaction structure [concurrent (CN) vs turn-based]. Performing dual-functional magnetic resonance imaging hyperscanning on pairs of individuals interacting on this task, and modeling brain responses in both interactants as systematic reactions to their partner’s behavior, we investigated interpersonal brain-behavior dependencies (iBBDs) during each dimension. This revealed patterns of iBBDs that differentiated among exchanges; in players supporting the actions of another, greater brain responses to the co-player’s actions were expressed in regions implicated in social cognition, such as the medial prefrontal cortex, precuneus and temporal cortices. Stronger iBBD during CN competitive exchanges was observed in brain systems involved in movement planning and updating, however, such as the supplementary motor area. This demonstrates the potential for hyperscanning to elucidate neural processes underlying different forms of social exchange.

Publication DOI: https://doi.org/10.1093/scan/nsz004
Divisions: College of Health & Life Sciences
Additional Information: © The Author(s) 2019. Published by Oxford University Press. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Uncontrolled Keywords: Competition,Cooperation,Hyperscanning,Interpersonal brain-behavior dependencies,Social interaction,Experimental and Cognitive Psychology,Cognitive Neuroscience
Publication ISSN: 1749-5024
Last Modified: 08 Jul 2024 07:46
Date Deposited: 17 Jan 2019 09:29
Full Text Link:
Related URLs: https://academi ... /nsz004/5289624 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2019-02-01
Published Online Date: 2019-01-15
Accepted Date: 2019-01-12
Authors: Spilakova, B.
Shaw, Daniel Joel (ORCID Profile 0000-0003-1139-8301)
Czekóová, Kristína
Brazdil, M.



Version: Accepted Version

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Version: Published Version

License: Creative Commons Attribution

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