标题:
Stroop任务中冲突适应的神经机制述评Neural Mechanisms of Conflict Adaptation in the Stroop Task: A Review
作者:
唐丹丹, 陈安涛
关键字:
Stroop任务, 冲突监测理论, 冲突适应, 事件相关电位, 时频分析, 功能磁共振 Stroop Task; Conflict Monitoring Theory; Conflict Adaptation; Event-Related Potentials (ERPs); Time-Frequency Analysis; Functional Magnetic Resonance Imaging (fMRI)
期刊名称:
《Advances in Psychology》, Vol.3 No.1, 2013-01-28
摘要:
在一致性任务中，如Stroop任务、Flanker任务和Simon任务，冲突适应表现为不一致试次之后的一致性效应(不一致试次与一致试次的行为差异)显著地小于一致试次之后的一致性效应。本文以Stroop任务为例，介绍冲突适应的神经机制。事件相关电位研究显示，N450的波幅调整与大脑对冲突的监测有关，持续电位(sustained potential, SP)的波幅调整与冲突解决有关。时频分析显示，大脑θ频带(theta-band, 4~7 Hz)的能量增加可能与冲突适应有关。功能磁共振研究显示，前扣带回(anterior cingulate cortex, ACC)和背外侧前额叶(dorsolateral prefrontal cortex, DLPFC)分别在冲突监测和冲突控制过程中扮演着重要角色。最后，该文介绍了冲突适应及其神经机制研究的新进展。
In the congruency tasks, e.g., Stroop task, Flanker task, and Simon task, conflict adaptation refers to smaller congruency effects which are indexed by the performance differences between incongruent and congruent trials following incongruent compared with congruent trials. This paper introduces the neural mechanisms of conflict adaptation in the Stroop task. The event-related potentials (ERPs) studies demonstrate that the N450 is mainly correlated with conflict monitoring; the conflict sustained potential (SP) is mainly related to conflict resolution. The time-frequency analysis displays that the increased magnitude of theta-band (4 - 7 Hz) may index conflict adaptation. Some functional magnetic resonance imaging (fMRI) studies reveal that anterior cingulate cortex (ACC) and (dorsolateral prefrontal cortex) DLPFC play important roles in the processes of conflict monitoring and control implemention. New progresses are discussed in the studies of neural mechanisms of conflict adaptation at last.