Perceiving an opponent's loss: gender-related differences in the medial-frontal negativity
Perceiving an opponent's loss: gender-related differences in the medial-frontal negativity
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DOI：
10.1093/scan/nsl020
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发表时间：
2006-09-01
影响因子：
4.2
通讯作者：
Hiraki, Kazuo
中科院分区：
文献类型：
--
作者：
Fukushima, Hirokata;Hiraki, Kazuo
随着对人类“社交大脑”的理解不断加深，神经科学面临的新挑战是阐明社交能力个体差异的本质。在这里，我们报告了复杂社会情境中同理心相关处理中性别差异的神经指数。使用脑电图描记术，我们测量了对自己和另一个人的金钱收益或损失的感知的神经活动，同时个人玩“竞争性”两人赌博游戏，其中一个人的金钱收益导致另一个人的损失。内侧-额叶消极性 (MFN) 是 300 毫秒潜伏期内反映事件情绪分类的一个组成部分，在感知对手的结果方面表现出显着的性别差异，但在自我执行的结果方面却没有。当女性感知到对手的结果时，就会引发最惠国待遇，这表明另一个人的损失被归类为负面，尽管这给她们带来了好处。相反，男性并没有对对手的结果产生明显的最惠国待遇。再加上情感分数与 MFN 呈负线性相关，这表明 MFN 对社会情感处理很敏感。这些结果表明，复杂社会行为的个体差异是由于对外部刺激做出反应的快速神经活动造成的。
Along with expanding the understanding of the human 'social brain', a new challenge for neuroscience is to elucidate the nature of individual differences in social competence. Here we report a neural index of gender difference in empathy-related processing in a complex social situation. Using electroencephalography, we measured the neural activity of perceptions to one's own and another's monetary gain or loss, while individuals played a 'competitive' two-person gambling game, in which one's monetary gain resulted in the other's loss. The medial-frontal negativity (MFN), a component within 300 ms latency reflecting an emotional categorization of the event, showed a significant gender difference in perceiving an opponent's, but not a self-performed outcome. When females perceive the opponent's outcomes, the MFN was elicited, indicating that another's loss was categorized as negative, even though it resulted in a benefit to them. On the contrary, the males did not elicit discernable MFN to the opponent's outcomes. Together with the fact that the affect score has a negative linear correlation with the MFN, this indicated that the MFN was sensitive to socio-emotional processing. These results suggest that individual differences in complex social behavior result from rapid neural activity in response to external stimuli.