Geschwind became Chief of Neurology at the
Boston VA Hospital in 1962, and an associate professor in neurology at
Boston University. Geschwind with
Edith Kaplan established in the early 1960s at the Boston VA the Boston University Aphasia Research Center. The Aphasia Research Center would go on to become a pioneer in interdisciplinary aphasia research, including luminaries like
Harold Goodglass. Geschwind ended his tenure as chief of neurology at the VA in 1966 and became Chair of the Department of Neurology at Boston University for 1966–68. In 1969, he was chosen as Harvard Medical School's James Jackson Putnam Professor of Neurology, a position previously held by his old mentor,
Derek Denny-Brown. At Harvard he continued to research aphasia and epilepsy, as well as dyslexias, the neuroanatomy of cerebral lateral asymmetries, and other areas of neurological dysfunction. Geschwind was noted for his inspirational teaching of medical students, residents, and fellows. He also supported an interdisciplinary approach to research. He significantly shaped the neurological climate in the US and Europe during his life, an influence which lives on in his students. Geschwind is credited with coining the term
behavioral neurology in the 1970s to describe the corpus of course material in the area of higher cortical functions starting to be presented at
American Academy of Neurology meetings. He also credited with the discovery of
Geschwind syndrome, which describes an
interictal behavior pattern seen in some people with
temporal lobe epilepsy. In later years, Geschwind worked with a number of neurologists to whose future research careers in behavioral neurology he gave significant direction; among these were
Albert Galaburda,
Kenneth Heilman,
Elliott Ross, and
David N. Caplan. He actively encouraged and supported interdisciplinary research. Geschwind would remain at Harvard Medical School until his premature death on November 4, 1984, aged 58. ==Legacy==