情绪对不同外倾水平个体行为抑制的影响  

The Effects of Emotion on Behavioral Inhibition were Modulated by Extraversion

作　　者：赵小淋 张燕 王建峰 ZHAO Xiaolin;ZHANG Yan;WANG Jianfeng(Department of Psychology,Chengdu Medical College,Chengdu 610500)

机构地区：[1]成都医学院心理学院,成都610500

出　　处：《心理与行为研究》2018年第4期449-457,共9页Studies of Psychology and Behavior

基　　金：国家自然科学基金项目(31700980);成都医学院大学生创新项目(201513705046)

摘　　要：采用双选择oddball实验范式与事件相关电位(ERP)技术,探讨了情绪对行为抑制的影响以及外倾性的调节作用。行为数据发现,相比标准刺激,被试对偏差刺激的反应时显著更慢,证明实验成功诱发了行为抑制效应。在内倾组,负性刺激下偏差与标准刺激反应时差值显著长于正性刺激条件,而在外倾组无显著差异。脑电数据发现,在N2成分上,内倾组在正性情绪下的波幅显著小于负性和中性情绪,而在外倾组,不同情绪下的波幅不存在显著差异。在P3成分上,内倾组在正性情绪下的波幅显著大于负性和中性情绪,相反,外倾组在负性情绪下的波幅显著大于正性和中性情绪。结果表明,情绪对行为抑制的影响受到了个体外倾性水平的调节。Using a two-choice oddball task and event-related potential （ERP） measures, the present study investigated the impact of emotion on behavioral inhibition as well as the moderate effect of extraversion. Behavioral results showed that irrespective of emotional valence, longer response time for deviant stimuli than for standard stimuli was found, demonstrating there were behavioral inhibitory effects during deviant condition. Moreover, in introverted subjects, the response time difference between negative deviant stimuli and standard stimuli was larger than the response time difference between positive deviant stimuli and standard stimuli. ERP results found that in introverted subjects, positive stimuli lead to smaller N2 amplitudes than neutral and negative stimuli. However, in extroverted subjects, there was no difference under different emotion conditions. Moreover, introverted subjects showed larger P3 amplitudes for positive stimuli than neutral and negative stimuli. On the contrary, in extroverted subjects, negative stimuli elicited more pronounced P3 amplitudes than positive and neutral stimuli. The above results show that the impacts of emotion on behavioral inhibition are modulated by extraversion.

关 键 词：情绪 外倾性 行为抑制 事件相关电位 双选择oddball 范式 

分 类 号：B842.6[哲学宗教—基础心理学]