反应与刺激冲突的脑机制差异:来自ERP研究的证据

心理与行为研究 ›› 2014, Vol. 12 ›› Issue (5): 583-587.

反应与刺激冲突的脑机制差异:来自ERP研究的证据

邱桂凤，张庆林

山东省寿光市圣都中学,山东寿光 262700
西南大学心理学部,重庆 400715

收稿日期:2013-06-03 出版日期:2014-09-20 发布日期:2014-12-19
通讯作者: 张庆林,男,西南大学心理学部教授,博士生导师。E-mail:zhangql@swu.edu.cn。
作者简介:邱桂凤,女,山东省寿光市圣都中学教师。

Brain Mechanism of Response Conflict and Stimulus Conflict: Evidence from an Event-Related Potential Study

Qiu Guifeng¹,Zhang Qinglin²

1 Shandong Shouguang Shengdu middle school, Shouguang 262700;
2 School of Psychology, South West University, Chongqing 400715

Received:2013-06-03 Online:2014-09-20 Published:2014-12-19

摘要/Abstract

摘要： 采用事件相关电位技术(ERP),用侧抑制任务探讨了刺激和反应冲突的脑内时程动态变化。行为数据表明,冲突条件的反应时显著长于无冲突条件,表现出明显的干扰效应；脑电数据表明,在300-450ms内,反应冲突比无冲突诱发了一个更负的ERP成分(N300-450),主要分布于额顶部,偶极子溯源分析发现,这一负成分可能主要源于ACC；而刺激冲突与无冲突相比在350-450ms内,也诱发了一个更负的ERP成分(N350-450),该负成分可能主要源于丘脑附近。这一结果表明,刺激与反应冲突所涉及的大脑机制可能并不相同。

关键词: 侧抑制任务, 反应冲突, 刺激冲突, 事件相关电位(ERPs)

Abstract: In the present study,the event-related potential(ERP) and flanker task was used to investigate the neural correlation of response conflict and stimulus conflict.Compared with the no conflict condition,behaviourally, there was obvious interference effect of the two conflict conditions.The brain electricity data showed that:response conflict elicited a more negative ERP deflection than did the no conflict task in the time window from 300-450ms, and dipole source analysis of difference wave indicated that one generator localized in ACC. Stimulus conflict elicited a more negative ERP deflection than did the no conflict task in the time window from 350-450ms, and dipole source analysis of difference wave indicated that one generator localized in thalamus. This result indicated that different conflicts may related to different brain mechanism.

中图分类号:

B842.11

邱桂凤，张庆林. 反应与刺激冲突的脑机制差异:来自ERP研究的证据[J]. 心理与行为研究, 2014, 12(5): 583-587.

Qiu Guifeng,Zhang Qinglin. Brain Mechanism of Response Conflict and Stimulus Conflict: Evidence from an Event-Related Potential Study[J]. Studies of Psychology and Behavior, 2014, 12(5): 583-587.

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