Journal
COGNITIVE BRAIN RESEARCH
Volume 16, Issue 3, Pages 391-398Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0926-6410(03)00053-3
Keywords
implicit and explicit sequence learning; PET; anterior cingulate cortex; mesial prefrontal cortex
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Using positron emission tomography (PET) and regional cerebral blood flow (rCBF) measurements, we investigated the cerebral correlates of consciousness in a sequence learning task through a novel application of the Process Dissociation Procedure, a behavioral paradigm that makes it possible to separately assess conscious and unconscious contributions to performance. Results show that the metabolic response in the anterior cingulate/mesial prefrontal cortex (ACC/MPFC) is exclusively and specifically correlated with the explicit component of performance during recollection of a learned sequence. This suggests a significant role for the ACC/MPFC in the explicit processing of sequential material. (C) 2003 Elsevier Science B.V. All rights reserved.
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