Parkinson’s Disease Psychosis

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Scales to assess psychosis in Parkinson’s disease: Critique and recommendations

By Hubert H. Fernandez MD, Dag Aarsland MD, Gilles Fénelon MD, Joseph H. Friedman MD, Laura Marsh MD, Alexander I. Tröster PhD, Werner Poewe MD, Olivier Rascol MD, Cristina Sampaio MD, Glenn T. Stebbins PhD and Christopher G. Goetz MD

Psychotic symptoms are a frequent occurrence in Parkinson’s disease (PD), affecting up to 50% of patients. The Movement Disorder Society established a Task Force on Rating Scales in PD, and this critique applies to published, peer-reviewed rating psychosis scales used in PD psychosis studies. Twelve psychosis scales/questionnaires were reviewed. None of the reviewed scales adequately…

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