Current opinion in neurology
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Cognitive impairment and dementia are among the most common nonmotor changes in Parkinson's disease. The purpose of this review is to present recent findings of clinical and neurobiological aspects of dementia in Parkinson's disease. ⋯ Increased understanding of underlying mechanisms of cognitive decline and dementia in Parkinson's disease has been achieved. This will hopefully lead to novel treatment with the potential of preventing or delaying the onset of dementia by influencing these mechanisms.