- Ph.D., 1992, University of Wisconsin–Madison
Peter Arnett's research interests lie primarily in the area of adult clinical neuropsychology. Current research focuses on understanding neuropsychological consequences of multiple sclerosis (MS), a demyelinating disorder of the central nervous system. Recent projects have evaluated neuropsychological correlates of depression in MS and factors (such as coping ) that may moderate the relationship between common symptoms of MS and depression. Recent studies have also explored the nature of depression in MS and how it differs from depression in non-neurological patient groups. Dr. Arnett also oversees the program on neuropsychological consequences of sports-related concussion for Penn State Athletics. This program involves baseline neuropsychological testing of first-year Penn State athletes involved in contact sports. When athletes experience concussions, they are re-tested and their postconcussion testing compared with baseline test results. This information is then used to assist return to play decisions. Current research from this program focuses on the influence of motivation on baseline performance, optimal ways of estimating baseline cognitive ability, and exploring the relative sensitivity of computerized versus paper-and-pencil neuropsychological tests to concussion.