Jerry Rosenbaum, MD is the Psychiatrist-in-Chief Emeritus of the Department of Psychiatry at Mass General, Director of the Center for the Neuroscience of Psychedelics, and the Stanley Cobb Professor in Psychiatry, Harvard Medical School. His research contributions include extensive leadership in the design and implementation of trials to develop innovative treatments for major depression, studies of psychopathology including comorbidity and subtypes, and studies of longitudinal course and outcomes of these psychiatric disorders. His research now focuses on understanding how psychedelics change the brain and to explore novel mechanisms for treatment of psychiatric disorders.