Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita, Osaka 565-0871, Japan.
Neurosci Res. 2019 Aug;145:39-45. doi: 10.1016/j.neures.2018.08.009. Epub 2018 Aug 25.
Interpersonal rhythmic interaction is one of the fundamental behaviors that allow humans to socially interact with others. In this study, we provide novel neuroimaging evidence that being followed by other agents in such an interaction is pleasant for humans. Using functional magnetic resonance imaging, we measured the brain activity of 17 participants while they performed a virtual drum-hitting task, in one of the following conditions: a) alternating with a virtual agent that would always copy their hitting pace, or b) alternating with a virtual agent that would randomly hit the drum. The participants reported a significantly higher subjective feeling of being followed by the agent in the first condition. Moreover, almost all participants preferred the agent that followed their drum-hitting rhythm. The activity of the caudate nucleus, which is one of the reward-related brain structures, was found to be associated with the subjective feeling of being followed, suggesting that the sense of being the leader, in an interpersonal rhythmic interaction, creates a pleasant feeling.
人际节奏互动是人类与他人进行社交互动的基本行为之一。在这项研究中，我们提供了新的神经影像学证据，表明在这种互动中被其他主体跟随是令人愉悦的。使用功能磁共振成像，我们测量了 17 名参与者在执行虚拟击鼓任务时的大脑活动，任务在以下两种条件下进行：a）与始终复制其击鼓节奏的虚拟主体交替，或 b）与随机击鼓的虚拟主体交替。参与者报告说，在第一种条件下，他们明显感觉到被主体跟随的主观感受更高。此外，几乎所有参与者都更喜欢跟随他们击鼓节奏的主体。尾状核的活动，这是与奖励相关的大脑结构之一，与被跟随的主观感受相关联，这表明在人际节奏互动中作为领导者的感觉会产生愉悦感。
