Face-body integration of intense emotional expressions of victory and defeat.
Face-body integration of intense emotional expressions of victory and defeat.
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面部与身体融合，胜利与失败的强烈情感表达
DOI：
10.1371/journal.pone.0171656
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Zhang D
中科院分区：
文献类型：
--
作者：
Wang L;Xia L;Zhang D
人们可以毫不费力地快速识别人类的面部表情。然而，对于现实生活中的强烈情感，积极和消极的面部表情很难区分，对面部表情的判断偏向于同时感知身体表情。本研究利用事件相关电位(ERPs)研究了成功和失败的面部和身体表情中情绪信号整合的神经动力学。职业球员的情感表情被用来创建面部-身体复合体的图片，面部和身体的情感表情要么匹配，要么不匹配。行为学结果表明，面部和身体的一致情绪信息有助于面部表情的识别。事件相关电位数据显示，与一致刺激相比，不一致刺激的P1波幅更大。此外，还观察到了身体价态对P1的主要影响，与获胜的身体相比，失败的刺激的幅度更大。在N170和N2中也观察到了小体表达的主要效应，优胜小体产生了更大的N170/N2幅度。在后期，在P3成分上发现了体价与一致性的显著交互作用。当面部和身体传达一致的情绪信号时，获胜的身体会比失去的身体产生更大的P3波幅。除了基于典型面部和身体表情的知识之外，本研究的结果还有助于我们理解实验室外情绪评估和分类的复杂性。
Human facial expressions can be recognized rapidly and effortlessly. However, for intense emotions from real life, positive and negative facial expressions are difficult to discriminate and the judgment of facial expressions is biased towards simultaneously perceived body expressions. This study employed event-related potentials (ERPs) to investigate the neural dynamics involved in the integration of emotional signals from facial and body expressions of victory and defeat. Emotional expressions of professional players were used to create pictures of face-body compounds, with either matched or mismatched emotional expressions in faces and bodies. Behavioral results showed that congruent emotional information of face and body facilitated the recognition of facial expressions. ERP data revealed larger P1 amplitudes for incongruent compared to congruent stimuli. Also, a main effect of body valence on the P1 was observed, with enhanced amplitudes for the stimuli with losing compared to winning bodies. The main effect of body expression was also observed in N170 and N2, with winning bodies producing larger N170/N2 amplitudes. In the later stage, a significant interaction of congruence by body valence was found on the P3 component. Winning bodies elicited lager P3 amplitudes than losing bodies did when face and body conveyed congruent emotional signals. Beyond the knowledge based on prototypical facial and body expressions, the results of this study facilitate us to understand the complexity of emotion evaluation and categorization out of laboratory.