PubMed · 1999 · 350 citations · 19 references
Hallucinations and delusions are common in patients with PD. More advanced and widespread brain changes seem to increase the risk for developing psychosis in patients with PD receiving levodopa therapy.
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Marshal F. Folstein, Susan E. Folstein, Paul R. McHugh · Journal of Psychiatric Research · 1975 · 85.9K citations
A New Depression Scale Designed to be Sensitive to Change
Stuart Montgomery, Marie Åsberg · The British Journal of Psychiatry · 1979 · 13.7K citations
Margaret M. Hoehn, Melvin D. Yahr · Neurology · 1967 · 11.9K citations · Full text
The spectrum of behavioral changes in Alzheimer's disease
Michael S. Mega, Jeffrey L. Cummings, Tara Fiorello et al. · Neurology · 1996 · 1.1K citations
Neuropsychology, Brain Function, Neuropsychiatric Disorders +16