Paul G. OvertonPaul G. Overton, PhD, is Professor of Neuroscience at the University of Sheffield, UK, and is currently the head of the Department of Psychology. The majority of his research focuses on the basal ganglia, a group of structures involved in action seletion, cognition and emotion. Although historically his work has been conducted using infrahuman species, his recent work has moved to include human subjects, particularly in relation to Attention Deficit Hyperactivity Disorder, Parkinson's disease and disgust. Read More Read Less