The dynamics of cognitive control: Evidence for within-trial conflict adaptation from frequency-tagged EEG

被引：86

作者：

Scherbaum, Stefan ^{[1
]}

Fischer, Rico ^{[1
]}

Dshemuchadse, Maja ^{[1
]}

Goschke, Thomas ^{[1
]}

机构：

[1] Tech Univ Dresden, Dept Psychol, D-01062 Dresden, Germany

来源：

PSYCHOPHYSIOLOGY | 2011年 / 48卷 / 05期

关键词：

Conflict monitoring; EEG; Frequency tagging; Executive functions; Cognitive control; Dynamics; ANTERIOR CINGULATE CORTEX; VISUAL-EVOKED POTENTIALS; TIME-COURSE; STROOP TASK; SPATIAL ATTENTION; EXECUTIVE CONTROL; ACTIVATION; LOCATION; MODEL; INFORMATION;

D O I：

10.1111/j.1469-8986.2010.01137.x

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

A central topic in the cognitive sciences is how cognitive control is adapted flexibly to changing task demands. Conflict monitoring theory originally proposed conflict triggered adjustments of cognitive control after a conflict trial to improve subsequent performance. In the present study, we tested the hypothesis that readjustments of cognitive control occur continuously within a conflict trial itself. Using frequency tagged electroencephalogram in a flanker task, we traced the allocation of attention to target and distracter stimuli. We found evidence for a conflict-triggered within-trial contrast enhancement dissociating target and distracters. This contrast enhancement vanished for consecutive trials with constant tagging frequencies, indicating that trial-to-trial conflict adaptation effects may, at least partly, be the product of interacting processes serving conflict resolution within trials.

引用

页码：591 / 600

页数：10

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[1] Conflict monitoring and anterior cingulate cortex: an update [J].