ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 2010, Vol. 42 ›› Issue (03): 334-341.

• • 上一篇    下一篇

负性情绪干扰行为抑制控制: 一项事件相关电位研究

辛 勇;李 红;袁加锦   

  1. (1西南科技大学法学院, 四川绵阳 621010) (2西南大学心理学院, 重庆 400715)
  • 收稿日期:2009-06-25 修回日期:1900-01-01 出版日期:2010-03-30 发布日期:2010-03-30
  • 通讯作者: 李红;袁加锦

Negative Emotion Interferes with Behavioral Inhibitory Control: An ERP Study

XIN Yong;LI Hong;YUAN Jia-Jin   

  1. (1 Law School of Southwest University of Science and Technology, MianYang, Sichuan 621010, China)
    (2 Key Laboratory of Cognition and Personality, Ministry of Education, School of Psychology, Southwest University, Chongqing 400715, China)
  • Received:2009-06-25 Revised:1900-01-01 Published:2010-03-30 Online:2010-03-30
  • Contact: LI Hong;YUAN Jia-Jin

摘要: 以往研究提示, 行为抑制控制与视觉情绪加工的神经活动存在交互作用, 而视觉材料诱发的正、负情绪如何影响行为控制加工过程尚不清楚。采用双选择情绪oddball范式与事件相关电位(ERP)技术, 本研究假设视觉情绪刺激的呈现对个体的行为控制能力具有显著影响。实验要求被试对标准刺激与偏差刺激(85% vs.15%)分别做不同的按键反应。偏差刺激由正、负、中三种来自中国情绪图片系统的情绪图片组成。行为结果发现, 负性条件下的反应时间显著长于中性与正性条件, 而三类偏差刺激的反应时均显著长于标准刺激的反应时。ERP结果显示, 不论效价, 在240~300ms与350~550ms两个时间窗口, 偏差刺激与标准刺激诱发的平均波幅差异显著, 表明本研究条件下行为抑制控制效应显著。在代表行为控制加工的偏差-标准差异波中, 在上述两窗口内分别出现显著的N2与P3成分。负性条件下N2及P3潜伏期显著长于中性条件; 而负性条件下N2波幅显著大于而P3波幅显著小于中性条件。相反, 正性条件下N2波幅显著小于而P3波幅显著大于中性条件。因此, 本研究从行为与脑电两个层面揭示了情绪对行为控制过程的影响: 负性情绪减弱个体的行为控制能力, 从而导致个体对反应冲突的觉察变慢及对优势反应的抑制过程更长。相反, 正性情绪对行为控制过程可能具有促进作用。

关键词: 行为控制, 情绪, ERP, 反应冲突, 双选择oddball范式

Abstract: Considerable studies have shown that emotional processes interact with behavioral inhibitory control (Shafritz, Collins, & Blumberg, 2006; Goldstein, et al., 2007). However, how visual induced emotion influences behavioral inhibitory control remains unknown. Specifically, whether emotion of different valences influences behavioral inhibitory control similarly or positive and negative emotions impact this control in different ways remains undetermined. Based on previous studies reporting different effects of positive and negative emotions on cognitive processes (Rowe, Hirsh and Anderson, 2007), the present study hypothesize that the inducement of negative emotion may impair behavioral control while that of positive emotion promotes the achievement of the control.
Using a two-choice oddball task (standard vs. deviant ratio: 85%:15%) and event-related potential measures (ERPs), the present study investigated the effect of emotion on behavioral inhibitory control. ERPs were recorded for standard stimuli, positive, neutral and negative deviant stimuli while subjects classify deviant and standard stimuli by pressing different keys, irrespective of the emotionality of deviants. All stimuli were emotionally evocative scenes taken from Chinese Affective Picture System.
Response times for negative deviant stimuli were longer than those for neutral and positive deviants. ERP data showed significant amplitude differences between deviant and standard conditions during 240-300ms and 350-550ms intervals, suggesting that the present task is valid in inducing processes of behavioral inhibitory control. In the deviant-standard difference ERPs that purely index effect of this control, there were pronounced deviant-related N2 and P3 components in 240-300ms and 350-550ms intervals respectively. The deviant-related N2 during negative condition was larger than that during neutral condition, while deviant-related P3 was less pronounced in response to negative stimuli than in response to neutral stimuli. In contrast, the N2 was smaller while the P3 was larger during positive versus neutral conditions. Additionally, the peak latencies of N2 and P3 components were delayed during negative compared to neutral conditions.
To summarize, the present study demonstrated a significant influence of emotion valence on processes of behavioral inhibitory control in both behavioral and electrophysiological levels. Negative emotion impairs processes of the response conflict monitoring and subsequent behavioral inhibition, while positive emotion may promote these processes.

Key words: behavioral inhibitory control, emotion, ERP, response conflicts, two-choice oddball task