A role for the human amygdala in recognizing emotional arousal from unpleasant stimuli

被引:172
作者
Adolphs, R
Russell, JA
Tranel, D
机构
[1] Univ Iowa, Coll Med, Dept Neurol, Div Cognit Neurosci, Iowa City, IA 52242 USA
[2] Univ British Columbia, Dept Psychol, Vancouver, BC, Canada
关键词
D O I
10.1111/1467-9280.00126
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Functional neuroimaging and lesion-based neuropsychological experiments have demonstrated the human amygdala's isle in recognition of certain emotions signaled by sensory stimuli, notably: fear and anger in facial expression. We examined recognition of two emotional dimensions, arousal and valence, in a rare subject with complete, bilateral damage restricted to the amygdala. Recognition of emotional arousal was impaired for facial expressions, words, and services that depicted unpleasant emotions, especially in regard to fear ann anger. However recognition of emotional valence was normal. The findings suggest that the amygdala plays a critical role in knowledge concerning the arousal of negative emotions, a function that may explain the impaired recognition of fear and anger in patients with bilateral amygdala damage, and one that is consistent with the amygdala's pole in processing stimuli related to threat and danger.
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页码:167 / 171
页数:5
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