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Interbrain phase synchronization during turn-taking verbal interaction-a hyperscanning study using simultaneous EEG/MEG

Authors
 Sangtae Ahn  ;  Hohyun Cho  ;  Moonyoung Kwon  ;  Kiwoong Kim  ;  Hyukchan Kwon  ;  Bong Soo Kim  ;  Won Seok Chang  ;  Jin Woo Chang  ;  Sung Chan Jun 
Citation
 Human Brain Mapping, Vol.39(1) : 171-188, 2018 
Journal Title
 Human Brain Mapping 
ISSN
 1065-9471 
Issue Date
2018
Keywords
hyperscanning ; phase synchronization ; simultaneous EEG/MEG ; social interaction ; turn-taking verbal interaction
Abstract
Recently, neurophysiological findings about social interaction have been investigated widely, and hardware has been developed that can measure multiple subjects' brain activities simultaneously. These hyperscanning studies have enabled us to discover new and important evidences of interbrain interactions. Yet, very little is known about verbal interaction without any visual input. Therefore, we conducted a new hyperscanning study based on verbal, interbrain turn-taking interaction using simultaneous EEG/MEG, which measures rapidly changing brain activities. To establish turn-taking verbal interactions between a pair of subjects, we set up two EEG/MEG systems (19 and 146 channels of EEG and MEG, respectively) located approximately 100 miles apart. Subjects engaged in verbal communication via condenser microphones and magnetic-compatible earphones, and a network time protocol synchronized the two systems. Ten subjects participated in this experiment and performed verbal interaction and noninteraction tasks separately. We found significant oscillations in EEG alpha and MEG alpha/gamma bands in several brain regions for all subjects. Furthermore, we estimated phase synchronization between two brains using the weighted phase lag index and found statistically significant synchronization in EEG and MEG data. Our novel paradigm and neurophysiological findings may foster a basic understanding of the functional mechanisms involved in human social interactions. Hum Brain Mapp 39:171-188, 2018. (c) 2017 Wiley Periodicals, Inc.
Full Text
https://onlinelibrary.wiley.com/doi/abs/10.1002/hbm.23834
DOI
10.1002/hbm.23834
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Chang, Won Seok(장원석) ORCID logo https://orcid.org/0000-0003-3145-4016
Chang, Jin Woo(장진우) ORCID logo https://orcid.org/0000-0002-2717-0101
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162018
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