Dr. Marshall received his B.A. in Psychology from Michigan State University and his M.S. and Ph.D. in Clinical Psychology from the Pacific Graduate School of Psychology at Palo Alto University. He completed an American Psychological Association (APA) accredited pre-doctoral internship in clinical psychology (neuropsychology track) at Baylor College of Medicine in Houston, Texas, and then went on to complete an APA accredited postdoctoral fellowship in clinical and research neuropsychology in the Department of Psychiatry at the University of Michigan.
Dr. Marshall is a Board Certified Clinical Neuropsychologist and Clinical Assistant Professor in the Department of Psychiatry. His research interests are in neuropsychology. He is specifically interested in investigating features that influence mood disorders to help clarify the risks and effects comprised by both cognitive and affective factors, with a focus on substance use disorders, adverse childhood experiences, aging, and suicide. His research investigating early adverse experiences and the impact they have on executive functioning has provided timely insight into the developing brain and the need for early treatments targeted for those at-risk individuals. Furthermore, his research has garnered much interest in the media leading to multiple media interviews and an article in the Detroit Free Press.