Wang Zhihao, Wang Yiwen, Zhou Xiaolin, Yu Rongjun
School of Psychology, Center for Studies of Psychological Application and Key Laboratory of Mental Health and Cognitive Science of Guangdong Province, South China Normal University, Guangzhou, China.
School of Economics and Management, Fuzhou University, Fuzhou 350108, China.
Soc Cogn Affect Neurosci. 2020 Dec 24;15(12):1326-1335. doi: 10.1093/scan/nsaa154.
People commonly use bluffing as a strategy to manipulate other people's beliefs about them for gain. Although bluffing is an important part of successful strategic thinking, the inter-brain mechanisms underlying bluffing remain unclear. Here, we employed a functional near-infrared spectroscopy hyperscanning technique to simultaneously record the brain activity in the right temporal-parietal junction in 32 pairs of participants when they played a bluffing game against each other or with computer opponents separately. We also manipulated the penalty for bluffing (high vs low). Under the condition of high relative to low penalty, results showed a higher bluffing rate and a higher calling rate in human-to-human as compared to human-to-computer pairing. At the neural level, high relative to low penalty condition increased the interpersonal brain synchronization (IBS) in the right angular gyrus (rAG) during human-to-human as compared to human-to-computer interaction. Importantly, bluffing relative to non-bluffing, under the high penalty and human-to-human condition, resulted in an increase in response time and enhanced IBS in the rAG. Participants who bluffed more frequently also elicited stronger IBS. Our findings support the view that regions associated with mentalizing become synchronized during bluffing games, especially under the high penalty and human-to-human condition.
人们通常将虚张声势作为一种策略，以操纵他人对自己的看法来获取利益。尽管虚张声势是成功的战略思维的重要组成部分，但虚张声势背后的脑间机制仍不清楚。在这里，我们采用功能性近红外光谱超扫描技术，在32对参与者分别与对方或电脑对手玩虚张声势游戏时，同时记录他们右侧颞顶联合区的大脑活动。我们还操纵了对虚张声势的惩罚（高惩罚与低惩罚）。结果显示，在高惩罚相对于低惩罚的条件下，与人和电脑配对相比，人与人配对时的虚张声势率和叫牌率更高。在神经层面，与人和电脑互动相比，高惩罚相对于低惩罚条件在人与人互动期间增加了右侧角回（rAG）的人际大脑同步性（IBS）。重要的是，在高惩罚和人与人的条件下，与不虚张声势相比，虚张声势导致反应时间增加，且rAG中的IBS增强。虚张声势更频繁的参与者也引发了更强的IBS。我们的研究结果支持这样一种观点，即在虚张声势游戏中，与心理化相关的区域会同步，特别是在高惩罚和人与人的条件下。
