School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China.
Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China.
Soc Cogn Affect Neurosci. 2022 May 5;17(5):447-460. doi: 10.1093/scan/nsab114.
Experiencing positive emotions together facilitates interpersonal understanding and promotes subsequent social interaction among individuals. However, the neural underpinnings of such emotional-social effect remain to be discovered. The current study employed the functional near-infrared spectroscopy-based hyperscanning to investigate the abovementioned relationship. After participants in dyad watched movie clips with happily or neutral emotion, they were asked to perform the interpersonal cooperative task, with their neural activation of prefrontal cortex being recorded simultaneously via functional near-infrared spectroscopy. Results suggested that compared with the neutral movie watching together, a higher interpersonal neural synchronization (INS) in left inferior frontal gyrus during participant dyads watching happiness movie together was observed. Subsequently, dyads in happiness showed more effective coordination interaction during the interpersonal cooperation task compared to those in the neutral condition, and such facilitated effect was associated with increased cooperation-related INS at left middle frontal cortex. A mediation analysis showed that the coordination interaction fully mediated the relationship between the emotion-induced INS during the happiness movie-viewing and the cooperation-related INS in interpersonal cooperation. Taken together, our findings suggest that the faciliatory effect experiencing happiness together has on interpersonal cooperation can be reliably reflected by the INS magnitude at the brain level.
共同体验积极情绪有助于增进人际理解，并促进个体之间随后的社会互动。然而，这种情绪-社会效应的神经基础仍有待发现。本研究采用基于功能近红外光谱的超扫描技术来研究上述关系。在参与者观看具有快乐或中性情绪的电影片段后，要求他们同时执行人际合作任务，并通过功能近红外光谱记录他们的前额叶皮层的神经激活。结果表明，与共同观看中性电影相比，参与者在共同观看快乐电影时，左额下回的人际神经同步（INS）更高。随后，在人际合作任务中，快乐组的协调互动比中性组更为有效，而这种促进作用与左额中回的合作相关 INS 增加有关。中介分析表明，协调互动完全中介了快乐电影观看时情绪诱导的 INS 与人际合作中合作相关 INS 之间的关系。总之，我们的研究结果表明，共同体验快乐对人际合作的促进作用可以在大脑水平上可靠地反映在 INS 幅度上。
