Dr. Bohnen is professor of Radiology and Neurology at the University of Michigan, in Ann Arbor. He attended medical school in the Netherlands and completed a PhD in neuropsychology. He completed residency training in neurology (Mayo Clinic, Rochester, MN) and nuclear medicine (University of Michigan, Ann Arbor, MI). He was a fellow in movement disorders at the University of Michigan Medical Center. He holds clinical appointments in the Departments of Radiology (Division of Nuclear Medicine), Neurology at the University of Michigan and the Ann Arbor VA where he directs the movement disorders clinic. Dr. Bohnen’s research interests include the use of PET and MRI in the study of neurodegenerative disorders and normal aging. He is the director of the UM Functional Neuroimaging, Cognitive and Mobility Laboratory where his clinical research has a focus on neurobiological correlates of cognition, olfaction and mobility in normal aging and Parkinson disease.