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Lisa L. Barnes, PhD is the Alla V. and Solomon Jesmer Professor of Gerontology and Geriatric Medicine, and a cognitive neuropsychologist within the Rush Alzheimer’s Disease Center at Rush University Medical Center in Chicago, IL, USA. Dr. Barnes’ research focus is on the epidemiology of cognitive aging with an emphasis on understanding mechanisms of cognitive health disparities of chronic diseases of aging among older African Americans. As the Principal Investigator of the Minority Aging Research Study, known as MARS, a longitudinal clinical-pathologic study of more than 800 African Americans without dementia who have been followed for over 15 years, and the Clinical Core Leader of the African American Core of the Rush Alzheimer’s Disease Center, she is a leading expert on health disparities and minority aging. Dr. Barnes completed her BA in psychology from Clark Atlanta University and her PhD in biopsychology from the University of Michigan in Ann Arbor. Next, she completed a post-doctoral fellowship at the University of California, Davis in the field of cognitive neuroscience. She joined the Rush Alzheimer’s Disease Center as an assistant professor in July 1999. Dr. Barnes has made significant contributions to our understanding of cognitive aging, cognitive decline, and Alzheimer’s dementia in older African Americans. She has mentored numerous early career investigators, has published over 200 peer-reviewed manuscripts, and has received international recognition, awards, and honors from a number of universities and organizations for her work with communities under-represented in science.