The neural network underpinning social feedback contingent upon one's action: An fMRI study
The neural network underpinning social feedback contingent upon one's action: An fMRI study
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根据一个人的行为支撑社会反馈的神经网络：一项功能磁共振成像研究
DOI：
10.1016/j.neuroimage.2020.117476
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发表时间：
2020
期刊：
影响因子：
5.7
通讯作者：
Norihiro Sadato
中科院分区：
文献类型：
--
作者：
Eri Nakagawa;Motofumi Sumiya;Takahiko Koike;Norihiro Sadato
表扬能增强运动能力；然而，潜在的反馈途径是未知的。本研究假设运动系统的社会评价反馈受到社会权变评价系统（如前吻侧内侧前额叶皮层）自上而下的影响。我们开发了一个伪互动任务，简化了学生与教师的对话互动，并对33名参与者（13名男性，20名女性，平均年龄= 21.7岁，标准差= 2.0岁）进行了功能性磁共振成像研究。扫描仪内的参与者向扫描仪外的英语老师说出假英语单词。老师通过视频通过手势或语言提供接受或拒绝的反馈。作为控制条件，伪单词由计算机大声朗读。老师的认可提高了参与者的快乐率。对参与者话语的反馈，无论是拒绝还是接受，都会激活腋窝区。不管之前的话语是自我的还是计算机的，接受与拒绝相比激活了右侧初级视觉皮层（V1），而相反激活了左侧V1。V1激活的这种依赖于价的偏侧性表明，这种效应不是视觉加工的域一般调制。相反，早期视觉皮层是社会信号的特定值表征的一部分。通过对左、右V1种子区和腋窝调节区进行生理-生理相互作用分析，发现与双侧初级运动皮层的连通性增强。这些发现表明，来自他人的社会偶然的、自我相关的信号作为运动控制系统的反馈，这一过程是由早期视觉皮层介导的。
Praise enhances motor performance; however, the underlying feedback pathway is unknown. Here, we hypothesized that the social evaluation feedback to the motor system is modified by the top-down effect of the social contingency valuation system, such as the anterior rostral medial prefrontal cortex (arMPFC). We developed a pseudo-interactive task that simplified a conversational student-teacher interaction and conducted a functional magnetic resonance imaging study with 33 participants (13 men, 20 women; mean age = 21.7 years; standard deviation = 2.0 years). The participant inside the scanner uttered the pseudo-English word to the English teacher outside the scanner. The teacher provided feedback of acceptance or rejection by either gestures or words, through video. As a control condition, the pseudo-word was read aloud by a computer. Approval from the teacher enhanced the participants’ pleasure rate. Feedback to the participants’ utterance, either rejection or acceptance, activated the arMPFC. Irrespective of the preceding utterance by self or computer, acceptance compared with rejection activated the right primary visual cortex (V1), and the reverse activated the left V1. This valence-dependent laterality of V1 activation indicates that the effect is not the domain-general modulation of visual processing. Instead, the early visual cortices are part of the valence-specific representation of the social signal. Physio-physiological interaction analysis with the seed regions in the right and left V1 and the modulator region in the arMPFC showed enhanced connectivity with the bilateral primary motor cortex. These findings indicate that the socially contingent, self-relevant signals from others act as feedback to the motor control system, and this process is mediated by the early visual cortex.