Movement disorders undoubtedly form the core of the Parkinson's disease (PD) clinical picture. However, several other clinical manifestations can significantly complicate the course of the disease. These are the so-called non-motor symptoms, which include emotional, cognitive, autonomic, and sensory disorders, as well as psychotic [1, 2, 3]. According to DSM-IV criteria (American Psychiatric Association, 1994), dementia in PD can be presented as a progressive memory impairment syndrome in the absence of aphasia, apraxia, or agnosia.
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Kholin et al. (2024) studied this question.
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