情绪加工的早期事件相关电位成分的分析比较

The Analysis about Early ERPs for Emotion Processing

情绪加工早期ERP成分主要包括P1(80-130ms)、N1(80-130ms)和N170(150-200ms)等。这些成分标定了情绪加工的不同脑电活动时间进程,具有不同的心理含义。P1成分对负性情绪敏感,反映了人类对于威胁性信息的快速识别,具有自动加工的性质。N1成分与情绪信息的注意选择密切相关,反应了人类对于情绪的加工启动。N170成分是面孔识别特异性的指标,被认为与面部表情结构以及面部表情加工编码有关。为了更好地掌握这些成分的含义,今后的研究可以从这几方面入手:(1)进一步检验P1成分是否对所有负性情绪都敏感。(2)明确N1成分与所有人类的注意有关,还是仅仅与情绪信息有关。(3)进一步明确区分N170是面孔结构编码指标还是面孔表情编码指标。

The ERP components are related to emotion processing include Pl（80-130ms）, N1 （80-130ms） and N170 （150-200ms）. These components represent different stage of emotion process and thus have different mental meaning. P1 is sensitive to negative emotion, such as fear and anger, reflects a rapid and automatic identification to threaten-related stimuli. N1 is sensitive to emotional stimuli and more close related to attention. N170 is the index of face-speciflc, which implicates the process to code the structure and expression. Future research should extend the understanding of these components by exploring： （1） Whether P1 is sensitive to all negative emotion. （2）Whether N1 has automatic processing. （3） N170 is the index of facial structure code or expression code.