While norm-violating behavior in antisocial individuals has been widely studied, little is known about how these people react to unfair behavior directed towards them. Previous research yields inconclusive results with some evidence for rational and strategic behavior in antisocial individuals. Electrophysiological correlates as well as socio-contextual factors such as group affiliation that may inform decision making on fairness considerations have not been investigated in previous studies.

This study compared fairness considerations of antisocial violent offenders (N = 25) and controls (N = 26) by using the Ultimatum Game where one player proposes a split of resources and the other player has to respond by accepting or declining the offer. Group affiliation of the proposer (in- vs. out-group) and fairness of offers (fair vs. unfair) were manipulated.

We found no difference between groups regarding decision behavior. However, healthy participants showed an electrophysiological response to group affiliation, which was attenuated in the violent offender group.

This data suggests intact understanding of social norms in antisocial violent offenders while electrophysiological response pattern may be linked to impaired emotional reactions to expectancy violations.

虽然反社会个体的违反规范行为已被广泛研究，但人们对这些人对针对他们的不公平行为的反应知之甚少。以前的研究产生了不确定的结果，但有一些证据表明反社会个体的理性和战略行为。在以前的研究中，尚未研究电生理相关因素以及社会背景因素，例如可能为公平考虑的决策提供信息的群体隶属关系。

这项研究通过使用最后通牒博弈比较了反社会暴力犯罪者 ( N  = 25) 和控制者 ( N = 26) 的公平考虑， 其中一个玩家提议分配资源，而另一个玩家必须通过接受或拒绝提议来回应。提议者的团体隶属关系（组内与组外）和报价的公平性（公平与不公平）被操纵。

我们发现组间在决策行为方面没有差异。然而，健康的参与者表现出对团体归属的电生理反应，而在暴力犯罪者组中这种反应减弱。

该数据表明反社会暴力犯罪者对社会规范的完整理解，而电生理反应模式可能与对违反预期的情绪反应受损有关。