Immoral behaviors make individuals abominate and punish transgressors. Inspired by the associations between the Val66Met polymorphism of brain‐derived neurotropic factor (BDNF) gene and emotional responses following negative events, we investigated whether this polymorphism was also associated moral emotions such as punishment and forgiveness following interpersonal transgression. To do so, we categorized 340 individuals according to the BDNF Val66Met and assessed moral emotions by using 12 hypothetic scenarios in different conditions of intention and interpersonal consequence. The results indicated that this polymorphism was significantly associated with moral aversion and punishment towards transgressors. Victims with the Val/Val genotype expressed less aversion and punishment than the Met carriers, regardless of intention and interpersonal consequence. Moreover, this polymorphism was associated with forgiveness. Victims with the Val/Val genotype expressed more forgiveness than the Met carriers. Taken together, these findings highlight the importance of the BDNF Val66Met to moral emotions.

中文翻译：

---

BDNF Val66Met基因多态性会影响人际交往后受害者的道德情感。

不道德的行为使个人憎恶并惩罚犯罪者。受脑源性神经营养因子（BDNF）基因的Val66Met多态性与负性事件后的情绪反应之间的关联的启发，我们调查了这种多态性是否也与人际违法后的惩罚和宽恕等道德情感有关。为此，我们根据BDNF对340个人进行了分类Val66通过使用12种假设情景在不同的意图和人际交往条件下满足并评估道德情感。结果表明，这种多态性与对犯规者的道德厌恶和惩罚显着相关。具有Val / Val基因型的受害者表示的厌恶和惩罚要比Met携带者少，无论其意图和人际关系如何。此外，这种多态性与宽恕有关。具有Val / Val基因型的被害人比Met携带者表现出更多的宽恕。综上所述，这些发现突出了BDNF Val66Met对道德情感的重要性。