Gerald Fischbach

Please join us for a service to remember his full and wonderful life on Friday October 30th, at 11:00am at Riverside Memorial Chapel.

In lieu of flowers please consider a donation to the Mind Brain and Behavior Initiative at Colgate University https://www.colgate.edu/give

Gerald D. Fischbach 11/15/38-10/25/26

Dr. Gerald D. Fischbach, a renowned neuroscientist who helped explain how nerve cells connect and who led several of the country’s foremost research institutions in brain science and medicine, died on Sunday, October 25, 2026. He was 87.

Dr. Fischbach spent his scientific career studying the synapse, the junction through which nerve cells pass information to one another and to the muscles they control. He pioneered the use of cultured nerve cells to study the electrical behavior, structure and chemistry of developing synapses. His laboratory identified ARIA, a protein that directs muscle cells to build acetylcholine receptors at the nerve–muscle junction, and it shed light on how synapses form and are maintained. His research into the formation and maintenance of synapses provided groundbreaking insight into how the brain and muscles communicate, furthering the study of electrophysiology, morphology, and biochemistry.

A Phi Beta Kappa graduate of Colgate University, Dr. Fischbach received his M.D. from Cornell University Medical College in 1965. While at Cornell, he met the love of his life, Ruth, a student at the Cornell University School of Nursing.

Dr. Fischbach began his career in research at the National Institutes of Health. He went on to serve on the Harvard Medical School faculty, leaving to become the Edison Professor of Neurobiology and head of the Department of Anatomy and Neurobiology at Washington University School of Medicine. He returned to Harvard as Nathan Marsh Pusey Professor and Chair of Neurobiology at Harvard Medical School and Massachusetts General Hospital.

Dr. Fischbach directed the National Institute of Neurological Disorders and Stroke from 1998 to 2001. He then served as Columbia University’s Executive Vice President for Health and Biomedical Sciences and Dean of its Faculties of Medicine. In 2006 he became the founding director of the Simons Foundation Autism Research Initiative, which he helped build into a major force in autism research. He later became the Foundation’s first Chief Scientist.

Dr. Fischbach was a past president of the Society for Neuroscience and a member of the National Academy of Sciences, the National Academy of Medicine and the American Academy of Arts and Sciences. He was well known for his mentorship and generosity to generations of neuroscientists. He was widely published, a highly sought-after speaker, and a prolific fundraiser for the sciences. His most enduring professional legacy is that he trained and mentored many of the thought leaders currently active in the field of neuroscience.

Above all, Dr. Fischbach’s family was his North Star. He is survived by his beloved wife of 64 years, Dr. Ruth Fischbach, an accomplished bioethicist. He was the proud father to four children: Elissa Grayer, Dr. Peter Fischbach (Andrea), Dr. Neal Fischbach (Dr. Amy Gates), and Mark Fischbach (Tristin Green). He was the adoring grandfather to his twelve grandchildren: Annie (Ellie DeGarmo), Sophie (Harrison Roday), Josh (Avia Jacobs), Jordan, Molly, Gaby, Emily, Sydney, Maggie, Phoebe, Taylor, Avery.

Dr. Fischbach died peacefully at his home in Westchester, New York in a house rooted in family history. Previously owned by Ruth’s parents, it’s where he and Ruth were married in July 1962, and where they spent the last twelve years surrounded by their beloved pets, family, and friends. He and his family also spent over 50 happy years in Woods Hole, Massachusetts at the Marine Biological Laboratory (MBL) where he loved pursuing his research and teaching, serving as a member of its Board of Directors, and supporting young scientists.