Dr. A. Jon Stoessl is professor, head of heurology and co-director of the Djavad Mowafaghian Centre for Brain Health at the University of British Columbia. He holds a Tier 1 Canada Research Chair in Parkinson’s, is deputy editor of the journal Movement Disorders and sits on numerous other editorial boards, including Lancet Neurology. He chairs the scientific advisory board of the Parkinson’s Foundation and previously chaired the scientific advisory boards of Parkinson Society Canada, Ontario Mental Health Foundation, and Canada Research Chairs Interdisciplinary Adjudication Committee. He is president of the World Parkinson Coalition, a member of the Order of Canada and a fellow of the Canadian Academy of Health Sciences. Dr. Stoessl uses positron emission tomography to study Parkinson’s, including imaging biomarkers, the basis for complications of treatment and mechanisms of the placebo effect. He has 14,000 citations and has published more than 300 papers and book chapters.