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Interpersonal body and neural synchronization as a marker of implicit social interaction

Yun, Kyongsik and Watanabe, Katsumi and Shimojo, Shinsuke (2012) Interpersonal body and neural synchronization as a marker of implicit social interaction. Scientific Reports, 2 (12). Art. No. 959. ISSN 2045-2322. PMCID PMC3518815.

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One may have experienced his or her footsteps unconsciously synchronize with the footsteps of a friend while walking together, or heard an audience's clapping hands naturally synchronize into a steady rhythm. However, the mechanisms of body movement synchrony and the role of this phenomenon in implicit interpersonal interactions remain unclear. We aimed to evaluate unconscious body movement synchrony changes as an index of implicit interpersonal interaction between the participants, and also to assess the underlying neural correlates and functional connectivity among and within the brain regions. We found that synchrony of both fingertip movement and neural activity between the two participants increased after cooperative interaction. These results suggest that the increase of interpersonal body movement synchrony via interpersonal interaction can be a measurable basis of implicit social interaction. The paradigm provides a tool for identifying the behavioral and the neural correlates of implicit social interaction.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle
Yun, Kyongsik0000-0002-6103-7187
Shimojo, Shinsuke0000-0002-1290-5232
Additional Information:© 2012 Nature Publishing Group, a division of Macmillan Publishers Limited. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Received 9 May 2012; Accepted 15 November 2012; Published 11 December 2012. This work was supported by Japan Science and Technology Agency (CREST) and Tamagawa-Caltech gCOE programs. Author contributions: K.Y., K.W. and S.S. designed and performed the experiments. K.Y. analyzed the data. K.Y., K.W. and S.S. wrote the manuscript.
Funding AgencyGrant Number
Japan Science and Technology Agency (CREST)UNSPECIFIED
Tamagawa-Caltech gCOE ProgramUNSPECIFIED
Tamagawa University Global Centers of ExcellenceUNSPECIFIED
Subject Keywords:Cooperation; Consciousness; Cognitive control; Diagnostic markers
Issue or Number:12
PubMed Central ID:PMC3518815
Record Number:CaltechAUTHORS:20121212-114141243
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35948
Deposited By: Tony Diaz
Deposited On:12 Dec 2012 22:16
Last Modified:03 Aug 2020 22:46

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