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Mechanisms by which the brain monitors and modulates performance are an important focus of recent research. The conflict-monitoring hypothesis posits that the ACC detects conflict between competing response pathways which, in turn, signals for enhanced control. The N2, an ERP component that has been localized to ACC, has been observed after high conflict(More)
The medial prefrontal cortex (mPFC) is active in conditions of performance monitoring including error commission and response conflict, but the mechanisms underlying these effects remain in dispute. Recent work suggests that mPFC learns to predict the value of actions, and that error effects represent a discrepancy between actual and expected outcomes of an(More)
There has been accumulating evidence that cognitive control can be adaptively regulated by monitoring for processing conflict as an index of online control demands. However, it is not yet known whether top-down control mechanisms respond to processing conflict in a manner specific to the operative task context or confer a more generalized benefit. While(More)
BACKGROUND The success of a human intervention trial depends upon the ability to recruit eligible volunteers. Many trials fail because of unrealistic recruitment targets and flawed recruitment strategies. In order to predict recruitment rates accurately, researchers need information on the relative success of various recruitment strategies. Few published(More)
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