Parkinsonism by Neuropathological Diagnosis in the NACC Database Lead Investigator: John Morgan Institution : Washington University School of Medicine E-Mail : jmorgan@augusta.edu Proposal ID : 620 Proposal Description: The specific aims of this project are: A. To determine if UPDRS motor scores vary by neuropathological diagnosis (control, AD, PDD, DLB, FTD, VCI, etc.) B. To determine if neuroleptic exposure influences UPDRS motor scores in NACC subjects C. To determine if severity of dementia influences parkinsonism D. To identify demographic and disease-specific variables that influence the level of parkinsonism in NACC subjects