Early processing of the six basic facial emotional expressions
Early processing of the six basic facial emotional expressions
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DOI：
10.1016/s0926-6410(03)00174-5
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发表时间：
2003-10-01
期刊：
影响因子：
--
通讯作者：
Taylor, MJ
中科院分区：
文献类型：
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作者：
Batty, M;Taylor, MJ
面部情绪是日常生活中非语言交际的重要组成部分。最近关于情绪处理的研究表明，不同的情绪对应着不同的大脑区域，但对这种处理的时间确定得很少。在记录事件相关电位(ERPs)的同时，我们向26名年轻人呈现了大量表达六种基本情绪的陌生面孔，以及中性面孔。受试者对于被调查的具体问题很天真；这是一项内隐的情绪任务。ERPs表现出情绪前90ms(PI)的整体效应，而情绪表达之间的潜伏期和波幅差异从140ms(N170成分)开始。积极情绪诱发N170的时间明显早于消极情绪，恐惧面孔诱发的N170波幅大于中性或惊讶面孔。在额叶-中央部位的潜伏期较长(330-420ms)时，我们还发现情绪之间的影响模式不同。定位分析证实了面部表情早期加工的上、中颞区；这些负面情绪后来引发了独特的激活。这些数据支持情感表达的自动、快速处理模型。(C)2003爱思唯尔B.V.保留所有权利。
Facial emotions represent an important part of non-verbal communication used in everyday life. Recent studies on emotional processing have implicated differing brain regions for different emotions, but little has been determined on the timing of this processing. Here we presented a large number of unfamiliar faces expressing the six basic emotions, plus neutral faces, to 26 young adults while recording event-related potentials (ERPs). Subjects were naive with respect to the specific questions investigated; it was an implicit emotional task. ERPs showed global effects of emotion front 90 ms (P I), while latency and amplitude differences among emotional expressions were seen from 140 ms (N170 component). Positive emotions evoked N170 significantly earlier than negative emotions and the amplitude of N170 evoked by fearful faces was larger than neutral or surprised faces. At longer latencies (330-420 ms) at fronto-central sites, we also found a different pattern of effects among emotions. Localization analyses confirmed the superior and middle-temporal regions for early processing of facial expressions;. the negative emotions elicited later, distinctive activations. The data support a model of automatic, rapid processing of emotional expressions. (C) 2003 Elsevier B.V. All rights reserved.