Journal
CEREBRAL CORTEX
Volume 15, Issue 7, Pages 899-912Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/cercor/bhh189
Keywords
frontal; parietal; task switching; conflict effect; preparation
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A dissociable set of regions was active for the executive processing associated with overcoming a prepotent response tendency and task switching. Regions associated with overcoming prepotency were primarily frontal and may be part of a system involved in top-down biasing for conflict reduction. Posterior regions were recruited for switching between tasks and likely play a role in reconfiguring stimulus-response mappings. Precuneus activity was common to both manipulations and may reflect increased visual attention due to more difficult task demands.
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