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首页> 外文期刊>Neuron >Early amygdala reaction to fear spreading in occipital, temporal, and frontal cortex: a depth electrode ERP study in human.
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Early amygdala reaction to fear spreading in occipital, temporal, and frontal cortex: a depth electrode ERP study in human.

机译：早期杏仁核对恐惧在枕骨，颞骨和额叶皮层中扩散的反应：对人体的深度电极ERP研究。

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摘要

The amygdala involvement in fear processing has been reported in behavioral, electrophysiological, and functional imaging studies. However, the literature does not provide precise data on the temporal course of facial emotional processing. Intracranial event-related potentials to facial expressions were recorded in epileptic patients implanted with depth electrodes during a presurgical evaluation. Specific potentials to fear beginning 200 ms poststimulus were observed in amygdala, both individually in two patients and in a ten patient population study. These potentials occurred 100 ms earlier than potentials to disgust recorded in insula in a previous study. Potentials to fear were confined in amygdala during a first transient period and then, during a second period of sustained activity, spread to occipito-temporal, anterior temporal, and orbitofrontal cortex in two patients. This study clarifies the temporal course of the involvement of these structures known to be part of a neural network recruited to process emotional information.
机译：在行为，电生理和功能成像研究中已经报道了杏仁核参与恐惧过程。但是，文献没有提供关于面部情绪处理的时间过程的精确数据。在术前评估期间，在植入深度电极的癫痫患者中记录了与面部表情相关的颅内事件相关电位。在杏仁核中观察到了在刺激后200毫秒开始的恐惧的潜在可能性，分别在两名患者和十名患者中进行了研究。这些电位比先前研究中在岛绝缘中记录的令人反感的电位早100毫秒发生。恐惧的可能性在第一个短暂的时期内被限制在杏仁核中，然后在持续活动的第二个时期中，两名患者扩散到枕颞叶，颞前叶和眶额皮质。这项研究阐明了这些结构参与的时间过程，这些结构已知是为处理情感信息而募集的神经网络的一部分。

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