Along with his doctorate degree in clinical psychology from Wayne State University (WSU), he also received research training at the WSU Institute of Gerontology. Dr. Mast’s research on dementia and depression in late life has been published in peer-reviewed journals including American Journal of Geriatric Psychiatry, International Journal of Geriatric Psychiatry, Journal of Gerontology: Medical Sciences, Journal of Gerontology: Psychological Sciences, The Gerontologist, Clinical Gerontologist, Aging, Neuropsychology & Cognition, Biological Psychiatry, and Clinical Neuropsychologist. He has also contributed a chapter to the Annual Review of Gerontology and Geriatrics. His awards include the New Investigator Award from the American Geriatrics Society and the Outstanding Graduate Mentor Award from the Kentucky Psychological Association.