alexa Dissociating the role of the dorsolateral prefrontal and anterior cingulate cortex in cognitive control.
Neurology

Neurology

Journal of Neurology & Neurophysiology

Author(s): MacDonald AW rd, Cohen JD, Stenger VA, Carter CS

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Abstract Theories of the regulation of cognition suggest a system with two necessary components: one to implement control and another to monitor performance and signal when adjustments in control are needed. Event-related functional magnetic resonance imaging and a task-switching version of the Stroop task were used to examine whether these components of cognitive control have distinct neural bases in the human brain. A double dissociation was found. During task preparation, the left dorsolateral prefrontal cortex (Brodmann's area 9) was more active for color naming than for word reading, consistent with a role in the implementation of control. In contrast, the anterior cingulate cortex (Brodmann's areas 24 and 32) was more active when responding to incongruent stimuli, consistent with a role in performance monitoring.
This article was published in Science and referenced in Journal of Neurology & Neurophysiology

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