Future Research Issues
- Descriptive studies of the neuropsychiatric features in PSP, MSA, and CBD using standardized psychiatric rating scales.
- Study the diagnostic properties of the neuropsychiatric profile in parkinsonian disorders.
- Exploring the neurochemical underpinnings of neuropsychiatric symptoms in patients with parkinsonian disorders.
- In DLB, placebo-controlled trials of antidepressive and antipsychotic agents, and further trials of cho-linesterase inhibitors need to be conducted.
- In PSP, MSA, and CBD, pilot studies of the potential benefit of psychotropic agents are needed.
- Systematic studies of non-pharmacological strategies should be conducted for patients with parkinsonian disorders.
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