Centre for Psychiatry, Justus-Liebig University Giessen, Giessen, Germany.
Psychiatry Res. 2011 May 15;187(1-2):224-33. doi: 10.1016/j.psychres.2010.11.012. Epub 2010 Dec 3.
To gain further insight into interpersonal dysfunction in Borderline Personality Disorder (BPD) we investigated the effects of emotional cues and the fairness of a social partner on the ability to infer other peoples' intentions in a virtual social exchange. 30 BPD patients and 30 nonpatients were asked to play a multiround trust game with four virtual trustees. The trustees varied in regard to fairness and presence of emotional facial cues which were both linked to repayment ratio. BPD patients adjusted their investment to the fairness of their partner. In contrast, nonpatients disregarded the trustees' fairness in the presence of emotional facial expressions. Both groups performed equally in an emotion recognition task and assessed the trustees' fairness comparably. When the unfair trustee provided emotional cues, BPD patients assessed their own behavior as more fair, while the lack of cues led patients to assess their own behavior as unfair. BPD patients are superior in the attribution of mental states to interaction partners when emotional cues are present. While the emotional expressions of a partner dominated the exchange behavior in nonpatients, BPD patients used the objective fairness of their social counterparts to guide their own behavior despite the existence of emotional cues.
为了更深入地了解边缘型人格障碍（BPD）中的人际功能障碍，我们研究了情绪线索和社会伙伴的公平性对推断虚拟社交互动中他人意图的能力的影响。30 名 BPD 患者和 30 名非患者被要求与四个虚拟受托人进行多轮信任游戏。受托人的公平性和情绪面部线索的存在各不相同，这两者都与还款比例有关。BPD 患者根据合作伙伴的公平性来调整投资。相比之下，非患者在情绪面部表情存在的情况下忽略了受托人的公平性。两组在情绪识别任务中的表现相同，并且对受托人的公平性评估相当。当不公平的受托人提供情绪线索时，BPD 患者会认为自己的行为更公平，而缺乏线索则会使患者认为自己的行为不公平。当存在情绪线索时，BPD 患者在将心理状态归因于互动伙伴方面表现出色。虽然非患者的情绪表达主导了交换行为，但 BPD 患者尽管存在情绪线索，仍会利用社会对应方的客观公平性来指导自己的行为。
