The Timing of Action-Monitoring Processes in the Anterior Cingulate Cortex
Journal of Cognitive Neuroscience
Goal-based action selection and utility-based action bias
Neural Networks - 2006 Special issue: Neurobiology of decision making
Journal of Cognitive Neuroscience
The electrophysiological dynamics of interference during the stroop task
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Dynamic adjustments of cognitive control: Oscillatory correlates of the conflict adaptation effect
Journal of Cognitive Neuroscience
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Cognitive control allows us to adjust to environmental changes. The medial frontal cortex (MFC) is thought to detect conflicts and recruit additional resources from other brain areas including the lateral prefrontal cortices. Here we investigated how the MFC acts in concert with visual, motor, and lateral prefrontal cortices to support adaptations of goal-directed behavior. Physiologically, these interactions may occur through local and long-range synchronized oscillation dynamics, particularly in the theta range (4-8 Hz). A speeded flanker task allowed us to investigate conflict-type-specific control networks for perceptual and response conflicts. Theta power over MFC was sensitive to both perceptual and response conflict. Interareal theta phase synchrony, however, indicated a selective enhancement specific for response conflicts between MFC and left frontal cortex as well as between MFC and the presumed motor cortex contralateral to the response hand. These findings suggest that MFC theta-band activity is both generally involved in conflict processing and specifically involved in linking a neural network controlling response conflict.