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Elife. 2015 Apr 13;4:e06481. doi: 10.7554/eLife.06481.

Recruitment of the default mode network during a demanding act of executive control.

Author information

1
Medical Research Council Cognition and Brain Sciences Unit, Cambridge, United Kingdom.
2
University of Cambridge, Cambridge, United Kingdom.
3
Oxford Centre for Human Brain Activity, University of Oxford, Oxford, United Kingdom.

Abstract

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.

KEYWORDS:

cognitive control; cognitive neuroscience; default mode network; executive function; human; neuroscience; task switching

PMID:
25866927
PMCID:
PMC4427863
DOI:
10.7554/eLife.06481
[Indexed for MEDLINE]
Free PMC Article

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