述情障碍大学生面孔识别的事件相关电位研究  

A study on the event-related potential of face recognition in alexithymia undergraduates

作　　者：王伏兰 李洁 翟乡平 Wang Fulan

机构地区：[1]聊城市第四人民医院,山东聊城252000 [2]保定市第一医院,河北保定071000

出　　处：《中医临床研究》2020年第22期5-10,共6页Clinical Journal Of Chinese Medicine

摘　　要：目的:通过对述情障碍大学生在不同情绪状态面孔识别下的事件相关电位(Event Related Potentials,ERP)研究,探讨述情障碍大学生面孔识别的神经心理机制,为解决述情障碍相关问题提供理论的依据。方法:用多伦多述情障碍量表(Toronto Alexithymia Scale,TAS)筛选述情障碍组和非述情障碍组各20名,要求两组被试分别在正性、负性、中性3种情绪面孔刺激随机呈现后执行注意与选择任务,并分别检测被试执行任务时脑电视觉诱发电位,比较述情障碍组和非述情障碍组在正性、负性、中性3种情绪面孔下诱发的N170和P300波幅和潜伏期的差异。结果:述情障碍组与非述情障碍组在各类情绪面孔识别上的反应正确率[F(1,114)=0.203,P>0.05]和反应时[F(1,114)=0.193,P>0.05]无显著差异;述情障碍组在各类情绪面孔识别上的N170波幅要显著高于述情障碍非述情障碍组(P<0.01);述情障碍组在中性情绪面孔识别上的N170的潜伏期显著长于述情障碍非述情障碍组(P<0.05),在正性及负性情绪面孔识别上与述情障碍非述情障碍组均无显著差异(P>0.05);述情障碍组与非述情障碍组在各类情绪面孔识别上的P300波幅及潜伏期均无显著差异(P>0.05)。结论:述情障碍组与非述情障碍组在各类情绪面孔识别上的反应正确率和反应时无显著差异;述情障碍组在各类情绪面孔识别上的N170波幅要显著高于述情障碍非述情障碍组;述情障碍组在中性情绪面孔识别上的N170的潜伏期显著长于述情障碍非述情障碍组,在正性及负性情绪面孔识别上均与述情障碍非述情障碍组无显著差异;述情障碍组与非述情障碍组在各类情绪面孔识别上的P300波幅及潜伏期均无显著差异。Objective:Through the study on the event-related potential of alexithymia college students under different emotional state face recognition,the neuropsychological mechanism of alexithymia college students face recognition was discussed,which provides theoretical basis for solving problems related to alexithymia.Methods:There were alexithymia group and non-alexithymia group,with 20 patients in each by TAS screening test.The attention and choose mission of patients by positive,negative,neutral emotional faces stimulus were performed,the electroencephalogram evoked potentials of the subjects during the task were detected respectively,and the amplitude and latency of N170 and P300 evoked by positive,negative and neutral emotional faces in the alexithymia group and the non-alexithymia group were compared.Results:There was no significant difference in response accuracy[F(1,114)=0.203,P>0.05]and response time[F(1,114)=0.193,P>0.05]between the alexithymia group and the non-alexithymia group in recognition of various emotional faces.The N170 amplitude of various emotional faces in the alexithymia group was significantly higher than that in the non-alexithymia group(P<0.01).The latent period of N170 for neutral emotional face recognition in the alexithymia group was significantly longer than that in the nonalexithymia group(P<0.05),and there was no significant difference between positive and negative emotional face recognition and that in the non-alexithymia group(P>0.05).There was no significant difference in the P300 amplitude and latency between the alexithymia group and the non-alexithymia group in the recognition of various emotional faces(P>0.05).Conclusion:There was no significant difference between alexithymia group and non-alexithymia group in response accuracy and response time of various emotional faces recognition.The N170 amplitude of various emotional faces in the alexithymia group was significantly higher than that in the non-alexithymia group.The incubation period of N170 in neutral emotional face recogniti

关 键 词：多伦多述情障碍量表 述情障碍 情绪面孔 N170 P300 

分 类 号：R312[医药卫生—基础医学]