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In the human brain, a default mode or task-negative network shows reduced activity during many cognitive tasks and is often associated with internally-directed processes, such as mind wandering and thoughts about the self. In contrast to this task-negative pattern, we show increased activity during a large and demanding switch in task set. Furthermore, we employ multivoxel pattern analysis and find that regions of interest within default mode network are encoding task-relevant information during task performance. Activity in this network may be driven by major revisions of cognitive context, whether internally or externally focused.

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cognitive control, cognitive neuroscience, default mode network, executive function, human, neuroscience, task switching, Adolescent, Adult, Attention, Brain, Brain Mapping, Cognition, Executive Function, Female, Humans, Magnetic Resonance Imaging, Male, Nerve Net, Reaction Time, Task Performance and Analysis