Stewart Factor is the director of the movement disorder program at Emory University. His primary areas of interest and research activities have been the study of freezing of gait and other movement disorder phenomenology, clinical trials in Parkinsons disease (PD), Huntington’s disease and dystonia and study of genetics, environmental exposures and biomarkers in PD. He is the site PI for the Parkinsons Progression Markers Initiative supported by the Michael J. Fox Foundation. He is currently examining in a longitudinal fashion psychiatric and cognitive outcomes in PD.