Detecting Mild Cognitive Deficits in Parkinson's Disease: Comparison of Neuropsychological Tests

Numerous neuropsychological tests and test versions are used in Parkinson's disease research, but their relative capacity to detect mild cognitive deficits and their comparability across studies are unknown. The objective of this study was to identify neuropsychological tests that consistently detect cognitive decline in PD across studies.Data from 30 normed neuropsychological tests across 20 international studies in up to 2908 nondemented PD...