Brain responses to the acquired moral status of faces
Brain responses to the acquired moral status of faces
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DOI：
10.1016/s0896-6273(04)00014-5
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发表时间：
2004-02-19
期刊：
影响因子：
16.2
通讯作者：
Frith, CD
中科院分区：
文献类型：
--
作者：
Singer, T;Kiebel, SJ;Frith, CD
我们研究了与人脸的社会相关方面的判断相关的神经反应是否延伸到通过在有意义的互动环境中学习获得其意义的刺激，特别是互惠合作。在功能磁共振成像过程中，受试者通过重复玩连续的囚徒困境游戏，对被介绍为公平（合作者）或不公平（背叛者）的人的面孔做出性别判断。为了操纵道德责任，玩家被引入作为有意或无意的代理人。我们的行为（喜欢度和记忆表现）以及我们的成像数据证实了社会公平对人类互动的显着性。相对于中性面孔，有意合作者的面孔在左杏仁核、双侧海马、梭状回、STS和奖励相关区域产生了增加的活动。我们的数据表明，在与社会认知相关的系统中，对他人道德状况的快速学习表现为神经活动的改变。
We examined whether neural responses associated with judgments of socially relevant aspects of the human face extend to stimuli that acquire their significance through learning in a meaningful interactive context, specifically reciprocal cooperation. During fMRI, subjects made gender judgments on faces of people who had been introduced as fair (cooperators) or unfair (defector) players through repeated play of a sequential Prisoner's Dilemma game. To manipulate moral responsibility, players were introduced as either intentional or nonintentional agents. Our behavioral (likebility ratings and memory performance) as well as our imaging data confirm the saliency of social fairness for human interactions. Relative to neutral faces, faces of intentional cooperators engendered increased activity in left amygdala, bilateral insula, fusiform gyrus, STS, and reward-related areas. Our data indicate that rapid learning regarding the moral status of others is expressed in altered neural activity within a system associated with social cognition.