Langbaum, a principal scientist at Banner Alzheimer's Institute, earned a bachelor's degree in neuroscience and psychology with high honors from Oberlin College in Oberlin, Ohio, and a Ph.D. in psychiatric epidemiology from the Johns Hopkins University. Her doctoral studies focused on cognition and aging in older adults, in particular, cognitive training interventions for delaying or preventing cognitive and functional decline. She completed a post-doctoral research fellowship in brain imaging and Alzheimer's disease at Banner Alzheimer's Institute. She is actively involved here in research activities focusing on the use of brain imaging for studying the earliest evidence of Alzheimer's and on the design and execution of preclinical Alzheimer's treatment trials. She directs the national Alzheimer’s Prevention Registry and serves as a study officer for the Alzheimer’s Prevention Initiative’s first clinical trial in autosomal dominant early-onset Alzheimer’s disease mutation carriers. Langbaum has published papers in leading scientific journals on cognitive training, brain imaging and preclinical Alzheimer's disease.