连贯性(哲学赌博策略)
功能近红外光谱
二元体
同步(交流)
工具箱
相位同步
计算机科学
心理学
人工智能
神经科学
物理
电信
认知
发展心理学
前额叶皮质
程序设计语言
频道(广播)
量子力学
作者
Hila Zahava Gvirts Provolovski,Mini Sharma,Itai Gutman,Anat Dahan,Yafeng Pan,Jacqueline Stotler,Teresa Wilcox
摘要
Despite the growing body of functional near-infrared spectroscopy (fNIRS) hyperscanning studies, the assessment of coupling between two neural signals using wavelet transform coherence (WTC) seems to ignore the directionality of the interaction. The field is currently lacking a framework that allows researchers to determine whether a high coherence value obtained using a WTC function reflects in-phase synchronization (i.e., neural activation is seen in both members of the dyad at the same time), lagged synchronization (i.e., neural activation is seen in one member of the dyad prior to the other member), or anti-phase synchronization (i.e., neural activation is increased in one member of the dyad and decreased in the other). To address this need, a complementary and more sensitive approach for analyzing the phase coherence of two neural signals is proposed in this work. The toolbox allows investigators to estimate the coupling directionality by classifying the phase angle values obtained using traditional WTC into in-phase synchronization, lagged synchronization, and anti-phase synchronization. The toolbox also allows researchers to assess how the dynamics of interactions develop and change throughout the task. Using this novel WTC approach and the toolbox will advance our understanding of complex social interactions through their uses in fNIRS hyperscanning studies.
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