Whose loss is it? Human electrophysiological correlates of non-self reward processing
Whose loss is it? Human electrophysiological correlates of non-self reward processing
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DOI：
10.1080/17470910802625009
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发表时间：
2009-01-01
影响因子：
2
通讯作者：
Hiraki, Kazuo
中科院分区：
文献类型：
--
作者：
Fukushima, Hirokata;Hiraki, Kazuo
认识到另一个人的行为是否会导致好的或坏的结果，对于社会学习以及在广泛的背景下理解他人的行为至关重要。最近的研究表明，头皮表面事件相关电位（ERP）被称为内侧额叶负性（MFN），被认为是负性奖励加工的指标，不仅在感知自己的损失时，而且在感知他人的损失时产生。这表明，同样的神经机制在监控自己的行为和感知他人行为的后果方面起作用。为了进一步阐明这一观测MFN的性质，本研究考察了其振幅是否随不同的观测目标而不同。在一项赌博任务中，参与者观察了非自我代理人的表现：一个人类朋友和PC程序。这些代理人的决策结果与参与者自己的利益无关。ERP结果表明，只有当观察人类代理人所做的决定的结果时，MFN样模式才被显着引发。此外，自我报告的共情措施与观察最惠国待遇的大小呈正相关。这些发现表明，在非自我奖励加工的神经活动反映了社会情绪状态所产生的观察目标，以及个人的移情特质。
To recognize whether another person's action results in a good or bad outcome is imperative for social learning, as well as for understanding the behavior of others in a broad context. Recent studies have reported that a scalp-surface event-related potential (ERP) called medial-frontal negativity (MFN), considered to be an index of negative reward processing, is generated when perceiving not only one's own losses, but also those of others. This suggests that the same neural mechanisms operate in monitoring one's own actions and in perceiving the consequences of the actions of others. To further elucidate the properties of this observational MFN, this study examined whether its amplitude differs with different observational targets. In a gambling task, participants observed the performances of non-self agents: a human friend and PC programs. The outcomes of the decisions of these agents were not associated with the participants' own benefits. ERP results showed that the MFN-like pattern was significantly elicited only when observing the outcomes of decisions made by human agents. Furthermore, self-reported measures of empathy were positively associated with the magnitude of the observational MFN. These findings suggest that the neural activity in non-self reward processing reflects a socioemotional state generated by the target of observation, as well as an empathetic trait of the individual.