贝塔振荡揭示了在对他人疼痛的感觉运动共振中存在种族内群体偏见。
Beta oscillations reveal ethnicity ingroup bias in sensorimotor resonance to pain of others.
作者信息
Riečanský Igor, Paul Nina, Kölble Sarah, Stieger Stefan, Lamm Claus
机构信息
Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria, Laboratory of Cognitive Neuroscience, Institute of Normal and Pathological Physiology, CE NOREG, Slovak Academy of Sciences, Bratislava, Slovakia, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria, and Research Methods, Assessment, and iScience, Department of Psychology, University of Konstanz, Konstanz, Germany Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria, Laboratory of Cognitive Neuroscience, Institute of Normal and Pathological Physiology, CE NOREG, Slovak Academy of Sciences, Bratislava, Slovakia, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria, and Research Methods, Assessment, and iScience, Department of Psychology, University of Konstanz, Konstanz, Germany.
Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria, Laboratory of Cognitive Neuroscience, Institute of Normal and Pathological Physiology, CE NOREG, Slovak Academy of Sciences, Bratislava, Slovakia, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria, and Research Methods, Assessment, and iScience, Department of Psychology, University of Konstanz, Konstanz, Germany.
出版信息
Soc Cogn Affect Neurosci. 2015 Jul;10(7):893-901. doi: 10.1093/scan/nsu139. Epub 2014 Oct 24.
People evaluate members of their own social group more favorably and empathize more strongly with their ingroup members. Using electroencephalography (EEG), we explored whether resonant responses of sensorimotor cortex to the pain of others are modulated by the ethnicity of these others. White participants watched video clips of ethnic ingroup and outgroup hands, being either penetrated by a needle syringe or touched by a cotton swab, while EEG was recorded. Time-frequency analysis was applied to Laplacian-transformed signals from the sensors overlying sensorimotor cortex in order to assess event-related desynchronization and synchronization (ERD/ERS) of sensorimotor mu (7-12 Hz) and beta (13-30 Hz) rhythms. When watching needle injections, beta ERD was significantly stronger for ingroup compared with outgroup hands. This ethnicity bias was restricted to painful actions, as beta ERD for ingroup and outgroup hands neither differed when observing no-pain videos, nor during presentation of the hands without any treatment. Such vicarious sensorimotor activation could play a role in social interaction by enhancing the understanding of the feelings and reactions of others and hence facilitating behavioral coordination among group members.
人们对自己社会群体的成员评价更高，对群体内成员的同理心也更强。我们使用脑电图（EEG）来探究感觉运动皮层对他人疼痛的共振反应是否会受到他人种族的调节。白人参与者观看了本族和外族手部的视频片段，这些手部要么被注射针头刺入，要么被棉签触碰，同时记录脑电图。对覆盖感觉运动皮层的传感器的拉普拉斯变换信号进行时频分析，以评估感觉运动μ（7 - 12赫兹）和β（13 - 30赫兹）节律的事件相关去同步化和同步化（ERD/ERS）。观看注射时，与外族手部相比，本族手部的β波ERD明显更强。这种种族偏见仅限于疼痛行为，因为观察无疼痛视频时，以及展示未经任何处理的手部时，本族和外族手部的β波ERD均无差异。这种替代性感觉运动激活可能通过增强对他人感受和反应的理解，从而促进群体成员间的行为协调，在社会互动中发挥作用。
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