Testosterone administration does not affect men's rejections of low ultimatum game offers or aggressive mood
Testosterone administration does not affect men's rejections of low ultimatum game offers or aggressive mood
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DOI：
10.1016/j.yhbeh.2016.09.012
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发表时间：
2017-01-01
影响因子：
3.5
通讯作者：
Rustichini, Aldo
中科院分区：
文献类型：
--
作者：
Cueva, Carlos;Roberts, R. Edward;Rustichini, Aldo
相关证据表明，睾酮促进支配和侵略。然而，因果证据很少，并且提供了不同的结果。为了研究这种关系，我们采用受试者内双盲安慰剂对照平衡交叉设计，对41名健康的年轻成年男性施用睾酮48小时。受试者在最后通牒游戏中扮演回应者的角色，拒绝低报价的代价很高，但会破坏提议者的利润。因此，这种行为可以解释为对社会挑衅的非身体攻击。此外，研究对象还完成了一份自我评估的情绪问卷。正如预期的那样，自我报告的攻击性是最后通牒游戏拒绝的关键预测因素。然而，尽管睾酮会影响精力充沛和兴趣的主观评分，但我们的证据强烈表明，睾酮对最后通牒游戏的拒绝或攻击性情绪没有影响。我们的研究结果说明了使用因果干预来评估相关证据的重要性。(C) 2016年由Elsevier Inc.出版。
Correlative evidence suggests that testosterone promotes dominance and aggression. However, causal evidence is scarce and offers mixed results. To investigate this relationship, we administered testosterone for 48 h to 41 healthy young adult men in a within-subjects, double-blind placebo-controlled balanced crossover design. Subjects played the role of responders in an ultimatum game, where rejecting a low offer is costly, but serves to destroy the proposer's profit. Such action can hence be interpreted as non-physical aggression in response to social provocation. In addition, subjects completed a self-assessed mood questionnaire. As expected, self reported aggressiveness was a key predictor of ultimatum game rejections. However, while testosterone affected subjective ratings of feeling energetic and interested, our evidence strongly suggests that testosterone had no effect on ultimatum game rejections or on aggressive mood. Our findings illustrate the importance of using causal interventions to assess correlative evidence. (C) 2016 Published by Elsevier Inc.