Jagust, M.D. is a professor at the Helen Wills Neuroscience Institute and at the School of Public Health. He is also a faculty senior scientist at the Lawrence Berkeley National Laboratory. His research focuses on the use of positron emission tomography (PET) and magnetic resonance imaging (MRI) to understand brain aging and dementia. Prior to Berkeley, Dr. Jagust directed the Alzheimer’s Disease Center at UC Davis, as well as chairing neurology in its School of Medicine at UC Davis. He has served on many review committees for the National Institutes of Health and serves on the editorial boards of the Annals of Neurology, Brain Imaging and Behavior,andAlzheimer’s Disease and Associated Disorders. He is an associate editor of the journal Frontiers in Human Neuroscience.