Lyu Zhenyong, Meng Jing, Jackson Todd
Key Laboratory of Cognition and Personality, Faculty of Psychological Science, School of Psychology, Southwest University, Beibei, Chongqing, 400715, China.
Exp Brain Res. 2014 Sep;232(9):2731-9. doi: 10.1007/s00221-014-3952-7. Epub 2014 Apr 26.
Determining how the perceived cause of pain influences the perception of pain in others has implications for prosocial behavior and moral reasoning. In this research, behavior and event-related potential (ERP) responses were recorded as 28 participants (12 men, 16 women) viewed images of painful situations said to be self-inflicted by the protagonist or caused by another person on the protagonist. As predicted, participants provided significantly higher pain intensity ratings for depictions featuring pain caused by another person than depictions of self-inflicted pain. ERP analyses showed no significant differences between protagonist alone and protagonist with other images of pain in the early negative component (N1). However, contrary to initial hypotheses, more positive P3 amplitudes were induced by images of self-inflicted pain in protagonists than images of protagonist pain caused by another person. Salience was considered as a key influence that may help to account for this pattern of findings.
确定对疼痛原因的认知如何影响对他人疼痛的感知，这对亲社会行为和道德推理具有重要意义。在本研究中，记录了28名参与者（12名男性，16名女性）在观看据说由主角自我造成或由他人施加于主角的痛苦情境图片时的行为和事件相关电位（ERP）反应。正如预期的那样，参与者对他人造成疼痛的描绘所给出的疼痛强度评分显著高于自我造成疼痛的描绘。ERP分析显示，在早期负性成分（N1）中，单独的主角图片与主角伴有其他疼痛图片之间没有显著差异。然而，与最初的假设相反，主角自我造成疼痛的图片比他人造成主角疼痛的图片诱发了更大的正性P3波幅。显著性被认为是一个关键影响因素，可能有助于解释这种研究结果模式。
