Interbrain phase synchronization during turn-taking verbal interactiona hyperscanning study using simultaneous EEG/MEG
Interbrain phase synchronization during turn-taking verbal interactiona hyperscanning study using simultaneous EEG/MEG
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DOI：
10.1002/hbm.23834
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发表时间：
2018-01-01
影响因子：
4.8
通讯作者：
Jun, Sung Chan
中科院分区：
文献类型：
--
作者：
Ahn, Sangtae;Cho, Hohyun;Jun, Sung Chan
最近，关于社会互动的神经生理学发现已经被广泛研究，并且已经开发出可以同时测量多个受试者的大脑活动的硬件。这些超扫描研究使我们能够发现新的和重要的证据，中脑相互作用。然而，很少有人知道没有任何视觉输入的口头互动。因此，我们进行了一项新的超扫描研究，该研究基于使用同步EEG/MEG的言语、中脑话轮互动，该研究测量了快速变化的大脑活动。为了在一对受试者之间建立话轮转换言语互动，我们建立了两个EEG/MEG系统（分别为19和146个EEG和MEG通道），相距约100英里。受试者通过电容式麦克风和磁性兼容耳机进行口头交流，网络时间协议使两个系统同步。十名受试者参与了本实验，并分别执行言语互动和非互动任务。我们发现所有受试者的几个脑区的EEG α和MEG α/γ波段有显著的振荡。此外，我们估计两个大脑之间的相位同步使用加权相位滞后指数，发现统计学上显着的同步EEG和MEG数据。我们的新范式和神经生理学发现可能会促进对人类社会互动中所涉及的功能机制的基本理解。《脑地图》39：171-188，2018。(c)2017年Wiley Periodicals，Inc.
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 approximate to 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.