title: Recruitment of the default mode network during a demanding act of executive control.
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.
authors: Medical Research Council Cognition and Brain Sciences Unit, Cambridge, United Kingdom.|University of Cambridge, Cambridge, United Kingdom.|Oxford Centre for Human Brain Activity, University of Oxford, Oxford, United Kingdom.
authors: Ben M
authors: BM
authors: Crittenden
authors: Medical Research Council Cognition and Brain Sciences Unit, Cambridge, United Kingdom.
authors: Daniel J
authors: http://orcid.org/0000-0001-8729-3886
authors: DJ
authors: Mitchell
authors: Medical Research Council Cognition and Brain Sciences Unit, Cambridge, United Kingdom.|University of Cambridge, Cambridge, United Kingdom.
authors: John
authors: J
authors: Duncan
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention / Q000502:physiology; D001921:Brain; D001931:Brain Mapping; D003071:Cognition / Q000502:physiology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009415:Nerve Net / Q000033:anatomy & histology / Q000502:physiology*; D011930:Reaction Time; D013647:Task Performance and Analysis
keywords: cognitive control; cognitive neuroscience; default mode network; executive function; human; neuroscience; task switching