Multiple Conflict-Driven Cognitive Control Mechanisms Based on Flanker、Stroop and Simon

Abstract

Abstract: This study is to investigate the brain mechanism of different types of conflict by using the event-related potential(ERP)technique. In order to investigate this issue, this study integrate different types of conflict （such as Flanker，Stroop，and Simon conflict）.On the one hand, the behavioral responses data showed that: Firstly, all the types of the conflict in all the experiments show the Congruency Effect and the Conflict Adaptation Effects; Secondly, each type of conflict of previous trial in all the experiment only interacts with its own kind of current trial ,but does not interact with other kind of current trial. On the other hand, ERP data of the two experiments show that: with the exception of Flanker conflict in experiment 2, all the conflict types in all the experiments show that the P300 latency,the N450,and the SP component in line with the Congruency Effect.. The data above show that: Firstly, in a variety of types of conflict condition, the human brain can be able to monitor and then solve the conflict at the same time and also achieve successful task performance, and the conflict monitoring theory are still applicable; Secondly, the human brain use local control mechanism to resolve the conflict. To sum up, multiple conflict-driven control mechanisms are based on the conflict-specific manner, these mechanisms are independent, and free from any interference with each other.

Key words: Conflict Monitoring, Event-related Potentials（ERPs）, Cognitive Control

摘要： 认知控制是维持和调整多任务目标导向的加工策略，而基于多任务冲突的认知控制是一般领域上还是特定领域上，即一种冲突是否会影响另一种冲突的解决，已有研究并没有得到统一的结论。本研究运用事件相关电位（ERP）方法考察了同一任务中不同类型冲突（Stroop、Simon和Flanker冲突）驱动认知控制调节的脑机制。数据显示：各冲突都出现了一致性效应和冲突适应性效应；实验中每种冲突的上一个trial只与该类冲突的当前trial的交互效应显著，而与其他类型冲突的当前trial的交互效应不显著；几乎所有冲突都发现了P300、N450、SP成分一致性效应。结果表明：在不同类型冲突驱动条件下，人脑能够同时监控并解决不同类型的冲突；冲突驱动的认知控制系统以局部的控制方式工作；人脑是基于多冲突驱动的认知控制系统的灵活性和某类型冲突所特有的控制机制来解决冲突，且冲突解决机制是相互独立、互不干扰的。

关键词: 冲突监控, 事件相关电位, 认知控制

胡凤培王倩徐莲葛列众. 基于Flanker、Stroop和Simon多重冲突驱动的认知控制机制[J]. 心理科学, 2012, 35(2): 276-281.

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