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The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Dopaminergic modulation of high-level cognition in Parkinson's disease: the role of the prefrontal cortex revealed by PET

Cools, R., Stefanova, E., Barker, R. A., Robbins, T. W., Owen, A. M.·2002·Brain

Abstract

This study examined the effects of L-dopa medication in patients with Parkinson's disease on cortical and subcortical blood flow changes during two tasks known to involve frontostriatal circuitry. Eleven patients with Parkinson's disease were scanned on two occasions, one ON L-dopa medication and one OFF L-dopa medication, during performance of the Tower of London planning task and a related test that emphasized aspects of spatial working memory. L-dopa-induced decreases were observed in the right dorsolateral prefrontal cortex during performance of both the planning and the spatial working memory tasks compared with the visuomotor control task. Conversely, L-dopa-induced blood flow increases were observed in the right occipital lobe during the memory task relative to the control task. Data from age-matched healthy volunteers demonstrated that L-dopa effectively normalized blood flow in these regions in the patient group. Moreover, a significant correlation was found between L-dopa-induced, planning related blood flow decreases in the right dorsolateral prefrontal cortex and L-dopa-induced changes in performance on the planning task. These data suggest that L-dopa ameliorates high-level cognitive deficits in Parkinson's disease by inducing relative blood flow changes in the right dorsolateral prefrontal cortex.

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Metadata

Authors
Cools, R., Stefanova, E., Barker, R. A., Robbins, T. W., & Owen, A. M.
Venue
Brain
Published
2002-03-01
Volume
125
Issue
3
Pages
584-594
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2147659195
Cited by
396
References
13
FWCI
14.02
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Dopaminergic modulation of high-level cognition in Parkinson's disease: the role of the prefrontal cortex revealed by PET. https://app.cochat.ai/papers/10.1093/brain/awf052
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Cools, R., Stefanova, E., Barker, R. A., Robbins, T. W., & Owen, A. M. (2002). Dopaminergic modulation of high-level cognition in Parkinson's disease: the role of the prefrontal cortex revealed by PET. Brain. https://doi.org/10.1093/brain/awf052

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