Volumetric and pathologic changes in genetic forms of PD Lead Investigator: Gian Pal Institution : Rutgers University E-Mail : gian.pal@rutgers.edu Proposal ID : 1635 Proposal Description: The aim is to compare volumetrics of cortical and subcortical regions in the brain of individuals with Parkinson's disease (PD) and those without Parkinson's disease. We will also examine differences in pathology between PD and non-PD subjects. Finally, we will determine the effect of genotype on both volumetrics and pathologic changes. This study will advance our understanding of how genetics influences MRI and pathological changes associated with PD.