免罚博弈中对不公平提议拒绝的神经关联
Neural correlates of the rejection of unfair offers in the impunity game.
作者信息
Takagishi Haruto, Takahashi Taiki, Toyomura Akira, Takashino Nina, Koizumi Michiko, Yamagishi Toshio
机构信息
Department of Behavioral Sciences, Hokkaido University, Sapporo, Japan.
出版信息
Neuro Endocrinol Lett. 2009;30(4):496-500.
OBJECTIVES
This study examined the roles of the insula and the anterior cingulate activations in the rejection of unfair offers in the impunity game.
METHODS
Fifteen participants played the impunity game in ten trials as responders during neuroimaging.
RESULTS
About 45% of the unfair offers were rejected by the responders even when responders could not restore a fair outcome, which cannot be accounted for by social preference of inequity aversion. Imaging data showed that the right anterior insula was activated when participants faced and rejected unfair offers.
CONCLUSIONS
The insula activation during a rejection of the unfair offers is the reflection of an emotional response, rather than social preference of inequity aversion. The role of emotion in the neuroeconomics of fairness was demonstrated.
目的
本研究考察了脑岛和前扣带回激活在免罚博弈中对不公平提议的拒绝行为里所起的作用。
方法
15名参与者在神经成像期间作为回应者进行了十轮免罚博弈。
结果
即便回应者无法恢复公平结果，约45%的不公平提议仍被回应者拒绝，这无法用对不平等厌恶的社会偏好来解释。成像数据显示，当参与者面对并拒绝不公平提议时，右侧前脑岛被激活。
结论
拒绝不公平提议时脑岛的激活反映的是一种情绪反应，而非对不平等厌恶的社会偏好。情绪在公平的神经经济学中的作用得到了证明。
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