Rapid emotional face processing in the human right and left brain hemispheres: an ERP study

被引:215
作者
Pizzagalli, D
Regard, M
Lehmann, D
机构
[1] Univ Wisconsin, Dept Psychol, Lab Affect Neurosci, Madison, WI 53706 USA
[2] Univ Zurich Hosp, Dept Neurol, CH-8091 Zurich, Switzerland
[3] Univ Hosp Psychiat, KEY Inst Brain Mind Res, CH-8029 Zurich, Switzerland
关键词
brain hemispheres; brain mapping; emotion; evoked potentials; face processing; laterality; microstates;
D O I
10.1097/00001756-199909090-00001
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
IMAGING work has begun to elucidate the spatial organization of emotions; the temporal organization, however, remains unclear. Adaptive behavior relies on rapid monitoring of potentially salient cues (typically with high emotional value) in the environment. To clarify the timing and speed of emotional processing in the two human brain hemispheres, event-related potentials (ERPs) were recorded during hemifield presentation of face images. ERPs were separately computed for disliked and liked faces, as individually assessed by post-recording affective ratings. After stimulation of either hemisphere, personal affective judgements of face images significantly modulated ERP responses at early stages, 80-116 ms after right hemisphere and 104-106 ms ms after left hemisphere stimulation. This is the first electrophysiological evidence for valence-dependent, automatic, ie. pre-attentive emotional processing in humans. (C) 1999 Lippincott Williams & Wilkins.
引用
收藏
页码:2691 / 2698
页数:8
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