Sydney S. Cash, MD, PhD, received his MD and PhD degrees from Columbia University College of Physicians and Surgeons, completed his Neurology residency and was a Chief Resident at MGH and BWH. Dr. Cash is on the Neurology staff at MGH, and is an Assistant Professor in Neurology at Harvard Medical School. Dr. Cash is a specialist in epilepsy with research expertise in cortical microphysiology, including research with the investigating the mechanisms of diseases such as epilepsy and ways of interfacing with the brain for improving the lives of people with seizures, paralysis and other neurological difficulties.