Peter Arnett

Peter Arnett is a Distinguished Professor of Psychology at Penn State University, specializing in clinical neuropsychology. He leads the Arnett Clinical Neuropsychology Lab, focusing on multiple sclerosis (MS) and sports-related concussion research. His work explores cognitive, emotional, and neurological outcomes in these populations, with a particular emphasis on depression, pain management, and treatment interventions. Dr. Arnett has received prestigious awards, including the National Academy of Neuropsychology’s Reitan Clinical Excellence Award (2024) and the NAN Nelson Butters Award for Research Contributions. He collaborates with national/international teams and mentors students like Garrett Thomas and Megan Bradson. His lab operates the neuropsychology of sports concussion program for Penn State athletes and has pioneered online CBT programs for MS depression. He holds a Ph.D. from the University of Wisconsin-Madison (1992) and is affiliated with the College of Liberal Arts.

Research interests include MS-related cognitive dysfunction, predictors of concussion recovery (e.g., sleep, genetics), and neuropsychological assessment innovations. Key contributions include identifying modifiable factors (e.g., coping, sleep) that influence clinical outcomes and validating CBT efficacy for MS depression. Dr. Arnett’s research is supported by grants from the National Multiple Sclerosis Society and other organizations. He co-authored over 100 peer-reviewed articles and serves as a leading voice in neuropsychological practice and education.

Professional activities include editorial roles, conference presentations, and advocacy for tele-neuropsychology and lifestyle interventions. His lab’s interdisciplinary approach bridges clinical practice and research, addressing real-world challenges in neurological and athletic populations. Training opportunities for students emphasize both theoretical and applied neuropsychological methods.