Department of Psychology, University of Konstanz, Konstanz, Germany.
Soc Cogn Affect Neurosci. 2011 Jan;6(1):109-18. doi: 10.1093/scan/nsq022. Epub 2010 Mar 8.
The present study used event-related brain potentials to examine the hypothesis that emotional gestures draw attentional resources at the level of distinct processing stages. Twenty healthy volunteers viewed pictures of hand gestures with negative (insult) and positive (approval) emotional meaning as well as neutral control gestures (pointing) while dense sensor event-related potentials (ERPs) were recorded. Emotion effects were reflected in distinct ERP modulations in early and later time windows. Insult gestures elicited increased P1, early posterior negativity (EPN) and late positive potential (LPP) components as compared to neutral control gestures. Processing of approval gestures was associated with an increased P1 wave and enlarged EPN amplitudes during an early time window, while the LPP amplitude was not significantly modulated. Accordingly, negative insult gestures appear more potent than positive approval gestures in inducing a heightened state of attention during processing stages implicated in stimulus recognition and focused attention.
本研究使用事件相关脑电位来检验假设，即情绪手势在不同的加工阶段吸引注意力资源。二十名健康志愿者观看带有负面（侮辱）和正面（赞许）情绪意义的手势图片以及中性控制手势（指示）的图片，同时记录密集传感器事件相关电位（ERPs）。情绪效应反映在早期和晚期时间窗口中不同的 ERP 调制中。与中性控制手势相比，侮辱手势引起 P1、早期后负变（EPN）和晚期正波（LPP）成分的增加。对赞许手势的处理与早期时间窗口中 P1 波的增加和 EPN 幅度的增大有关，而 LPP 幅度没有显著调节。因此，在涉及刺激识别和集中注意力的加工阶段，负面侮辱手势比正面赞许手势更能引起注意力的高度集中。
