Cognitive impairments in Parkinson's disease have been studied with great interest, and decisionmaking abilities in particular have received attention over the past decade. The degree of decisionmaking impairments in Parkinson's disease has been debated in relation to different types of decisionmaking tasks and the possible effect of dopaminergic medication, among others. The present review presents a systematic overview of literature investigating decision-making in patients with Parkinson's Disease treated with dopaminergic medication. The aim of the review is to discuss decision-making impairments displayed by patients considering effects of dopaminergic medication.Patients with Parkinson's Disease on dopaminergic medication were found to be impaired in decision making tasks. Dopaminergic medication has a complex, but often significant, relationship with decision making impairments. Finally, the influence of methodological differences in the assessment of decision-making will be considered offering important implications for future research.
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