[Psychoses in patients with Parkinson's disease; their frequency, phenomenology, and clinical correlates].

The frequency, phenomenology, and risk factors of hallucinations and delusions were investigated in 64 consecutive inpatients with Parkinson's disease. Fifty patients were admitted to our hospital with symptoms related to Parkinson's disease: psychiatric problems 27 (psychosis 22; anxiety 2; depression 2; mania 1): motor symptoms, 20 (wearing-off 5; akinesia 4; freezing 4; postural instability 4; dyskinesia 2; tremor 2; dystonia 1), and sensory symptoms, 3. Fourteen patients were admitted with other medical problems (pneumonia 4; cerebral infarction 3; bone fracture 3; lumbago 2; seizure 1; cat bite 1).