Yaakov SternYaakov Stern is the Florence Irving Professor of Neuropsychology in the departments of Neurology and Psychiatry, as well as the Taub Institute for the Research on Alzheimer's Disease and the Aging Brain and the Gertrude H. Sergievsky Center, at Columia University Vagelos College of Physicians and Surgeons. He is chief of the Cognitive Neuroscience Division of the Department of Neurology. His research work focuses on cognition in normal aging and diseases of aging, including exploring the neural implementation of cognitive reserve, structural and functional imaging of cognitive aging, and modeling the natural history of Alzheimer's disease.