Dopamine D2/D3 receptor binding in the anterior cingulate cortex and executive functioning☆
Abstract
The objective was to investigate the association between extrastriatal dopamine D2/D3 receptor binding and performance on the Wisconsin Card Sorting Test (WCST), a measure of executive functioning. Thirty-two healthy volunteers performed the WCST and underwent positron emission tomography and a high-affinity D2/D3 receptor tracer, [11C]FLB 457. All WCST error parameters, in particular nonperseverative errors, correlated positively with [11C]FLB 457 binding in the cognitive division of the right anterior cingulate cortex. An independent voxel-based receptor parametric mapping analysis confirmed these findings. The results indicate that executive functioning in healthy volunteers is modulated by D2/D3 receptors in the anterior cingulate cortex.
Keywords: Dopamine, D2 receptor, PET, Anterior cingulate, Executive function, WCST
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☆ This work was done in the Department of Psychiatry and Turku PET Centre, University of Turku, Turku, Finland.
PII: S0925-4927(07)00010-8
doi:10.1016/j.pscychresns.2006.12.012
© 2007 Elsevier Ireland Ltd. All rights reserved.
