Liu, Branigan, Zheng, Long, Bai, Li, Zhao, Zhou, Pickering, Lu (2019) Shared neural representations of syntax during online dyadic communication NeuroImage 198() 63-72


When people communicate, they come to see the world in a similar way to each other by aligning their mental representations at such levels as syntax. Syntax is an essential feature of human language that distinguishes humans from other non-human animals. However, whether and how communicators share neural representations of syntax is not well understood. Here we addressed this issue by measuring the brain activity of both communicators in a series of dyadic communication contexts, by using functional near-infrared spectroscopy (fNIRS)-based hyperscanning. Two communicators alternatively spoke sentences either with the same or with different syntactic structures. Results showed a significantly higher-level increase of interpersonal neural synchronization (INS) at right posterior superior temporal cortex when communicators produced the same syntactic structures as each other compared to when they produced different syntactic structures. These increases of INS correlated significantly with communication quality. Our findings provide initial evidence for shared neural representations of syntax between communicators. Copyright © 2019. Published by Elsevier Inc.

当人们进行交流时,他们通过将他们的心理表征与语法等级相对应,以相似的方式来看世界。语法是人类语言的一个基本特征,它将人类与其他非人类动物区分开来。然而,传播者是否以及如何共享语法的神经表示尚不清楚。在这里,我们通过使用基于功能近红外光谱(fNIRS)的超扫描测量两个通信器在一系列二元通信环境中的大脑活动来解决这个问题。两个传播者交替地说出具有相同或不同句法结构的句子。结果显示,当沟通者产生相同的句法结构时,与产生不同句法结构时相比,右后颞上皮质的人际神经同步(INS)显着增加。 INS的这些增加与通信质量显着相关。我们的研究结果为传播者之间语法的共享神经表示提供了初步证据。版权所有©2019。由Elsevier Inc.出版