厌恶和恐惧情绪对跨期选择的不同影响:基于ERP的研究  

The Differential Effects of Disgust and Fear on Intertemporal Choice: An ERP Study

作　　者：方铖豪 宋锡妍 许书萍[2] 程亚华 陈朝阳[1] 刘雷 Fang Chenghao;Song Xiyan;Xu Shuping;Cheng Yahua;Chen Zhaoyang;Liu Lei(Department of Psychology,Ningbo University,Ningbo,315211;School of Social Development,East China University of Political Science and Law,Shanghai,200042)

机构地区：[1]宁波大学教师教育学院,宁波315211 [2]华东政法大学社会发展学院,上海200042

出　　处：《心理科学》2019年第6期1305-1311,共7页Journal of Psychological Science

基　　金：教育部人文社科基金项目(16YJC190013);浙江省自然科学基金项目(LQ17C090002);中国国家留学基金项目(201808330116)的资助。

摘　　要：本研究运用事件相关电位技术(ERPs)考察厌恶和恐惧情绪对跨期选择的影响。其中,厌恶和恐惧情绪采用情绪面孔图片进行启动,分析跨期选择任务中评估阶段所诱发的ERP成分。行为结果发现,与中性面孔相比,厌恶面孔启动使个体倾向于选择立即奖赏。ERP结果发现,在选项评估阶段,厌恶面孔比中性和恐惧面孔启动诱发更大的P2、P3和LPP波幅。这说明,厌恶情绪促使个体投入更多的注意和动机资源对跨期选项进行评估,进而使个体倾向即时满足。Intertemporal choice requires people to make trade-offs between costs and benefits that occur at different points in time. In real-life situations, emotional experiences are ubiquitous. Many decisions need to be made in a variety of incidental emotional states that are independent of decision-making tasks. Most researchers have taken a valence-based approach to examine how incidental emotions affect intertemporal choice. Recently, there has been an increased interest in investigating the influence of incidental specific emotions on intertemporal choice. However, few studies explore whether distinct emotional states of the same valence may have different effects on intertemporal choice. Disgust and fear are two kinds of negative emotions that are common in life. Although there are similar emotional valence and arousal level, disgust and fear are distinct in many aspects. First, their biological meanings are different. Second, their physiological bases are different. Third, their cognitive functions are different. Therefore, the present study focused on the effects of disgust and fear on intertemporal choices by using event-related potential techniques(ERPs). Twenty healthy volunteers participated in the present study. Disgust and fear were primed by emotional face images which were selected from Taiwan Residents Facial Expression Image Database(TFEID);We administered a modified version of intertemporal choice task, in which participants made a series of hypothetical choices between immediate rewards and delayed rewards. This study recorded and then analyzed the differences of ERP components in the evaluation stage of intertemporal choice task, thereby examining the processing mechanisms of disgust and fear affecting intertemporal choices. The behavioral results showed that disgust prime yielded significantly higher percentage of immediate reward choices than neutral prime. The ERP results showed that during the evaluation stage, disgust prime evoked larger P2 and P3 than neutral prime and fear prime;For the LPP, d

关 键 词：厌恶 恐惧 消极情绪 跨期选择 ERP 

分 类 号：B842.6[哲学宗教—基础心理学]