Selection of movement in normal subjects has been shown to involve the premotor, supplementary motor, anterior cingulate, posterior parietal, and dorsolateral prefrontal areas. In Parkinson's disease (PD), the primary pathological change is degeneration of the nigrostriatal dopaminergic projections, and this is associated with difficulty in initiating actions. We wished to investigate the effect of the nigral abnormality in PD on cortical activation during movement. Using C15O2 and positron e...Expand abstract
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Impaired mesial frontal and putamen activation in Parkinson's disease: a positron emission tomography study.
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