Affiliative zygomatic synchrony in co-present strangers

Scientific Reports
Yulia GollandNava Levit-Binnun

Abstract

In social contexts individuals frequently act as social chameleons, synchronizing their responses with those of others. Such synchrony is believed to play an important role, promoting mutual emotional and social states. However, synchrony in facial signals, which serve as the main communicative channel between people, has not been systematically studied. To address this gap, we investigated the social spread of smiling dynamics in a naturalistic social setting and assessed its affiliative function. We also studied whether smiling synchrony between people is linked with convergence in their autonomic and emotional responses. To that aim we measured moment-by-moment changes in zygomatic electromyography and cardiovascular activity in dyads of previously unacquainted participants, who co-viewed and subsequently rated emotional movies. We found a robust, dyad-specific zygomatic synchrony in co-viewing participants. During the positive movie, such zygomatic synchrony co-varied with cardiovascular synchrony and with convergence in positive feelings. No such links were found for the negative movie. Centrally, zygomatic synchrony in both emotional contexts predicted the subsequently reported affiliative feelings of dyad members. These ...Continue Reading

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Citations

May 23, 2020·Scientific Reports·Ilanit GordonShahar Siegman
Jan 24, 2020·Neuroscience and Biobehavioral Reviews·Elisabetta PalagiIvan Norscia
Dec 29, 2020·The Journal of Social Psychology·Michael C PhilippLucy Johnston
Mar 23, 2021·Scientific Reports·Bruna Eugênia Ferreira MotaGabriela Guerra Leal Souza
Jul 22, 2021·Psychophysiology·Yair Dor-ZidermanYulia Golland
Sep 25, 2021·Human Brain Mapping·Sarah L DziuraElizabeth Redcay

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