社交焦虑个体面孔情绪识别的事件相关电位研究  

An Event-Related Potential Study on Facial Emotion Recognition in Individuals With Social Anxiety

作　　者：毕玉婧 高杰 杨奇伟[1] Bi Yujing;Gao Jie;Yang Qiwei(Chengdu Medical College,Chengdu 610500,China)

机构地区：[1]成都医学院,成都610500

出　　处：《成都医学院学报》2023年第5期599-605,共7页Journal of Chengdu Medical College

基　　金：国家自然科学基金面上项目(No:31671173);四川省社科规划重点研究基地重大项目(No:SC21EZD009)。

摘　　要：目的研究社交焦虑个体面孔情绪识别的特点,探讨其对面孔情绪的注意偏向。方法本研究为2(社交焦虑:高焦虑、低焦虑)×3(面孔情绪类型:平静、愤怒、恐惧)混合实验设计。根据社会交往焦虑量表得分,筛选出高社交焦虑被试21名(试验组)和低社交焦虑被试20名(对照组),完成面孔情绪识别任务。结果在P1波幅上,对照组识别愤怒面孔时的P1波幅>平静面孔(t=2.725,P=0.010);试验组识别恐惧面孔时的P1波幅<平静面孔(t=2.394,P<0.05)和愤怒面孔(t=2.295,P<0.05),两组被试识别平静面孔的N170波幅<识别愤怒面孔(t=3.155,P<0.01)。结论在对面孔情绪的早期加工阶段,高社交焦虑个体表现出了对平静面孔的注意偏向,比低社交焦虑个体识别平静情绪面孔时消耗更多的注意资源,这也解释了社交焦虑个体回避社交场合的其中一个原因。Objective To study the characteristics of facial emotion recognition in individuals with social anxiety and explore their attentional bias towards facial emotions.Methods The independent variables included 2 social anxiety levels(high and low)and 3 emotional types(calm,anger and fear).According to the scores of the Social Interaction Anxiety Scale(SIAS),21 participants with high social anxiety(the experimental group)and 20 participants with low social anxiety(the control group)were screened to complete the facial emotion recognition task.Results The event-related potential(ERP)P1 amplitude of the control group when recognizing angry faces was greater than that when recognizing calm faces(t=2.725,P=0.010).The ERP P1 amplitude of the experimental group when recognizing fearful faces was smaller than that when recognizing calm faces(t=2.394,P<0.05)and angry faces(t=2.295,P<0.05).And the ERP N170 amplitude of both groups when recognizing calm faces were smaller than those when recognizing angry faces(t=3.155,P<0.01).Conclusion In the early processing stage of facial emotions,individuals with high social anxiety show an attentional bias towards calm faces,consuming more attention resources than individuals with low social anxiety when recognizing calm faces,which also explains one of the reasons why individuals with social anxiety avoid social occasions.

关 键 词：社交焦虑 面孔情绪 P1 N170 注意偏向 

分 类 号：R749.99[医药卫生—神经病学与精神病学]