During that time, he had developed an interest in neurology, under the guidance of Dr. Adolph Sahs, best known for his work in the natural history of subarachnoid hemorrhage from aneurysms.
He studied neurosurgery at King County Hospital (now Harborview Medical Center) and the University of Washington, and took further training at the National Institutes of Health.
He Also, served as a military surgeon for the United States Public Health Service from 1964-66 where he then returned to Seattle in 1966, he has been affiliated with the neurosurgical faculty at UW since that time.
In the 1980’s, this research had resulted in the development of the electrical stimulation mapping technique subsequently widely used to identify crucial language cortex in individual patients.
[1][2] He is the author of over 300 research papers[2] and chapters most on the surgical treatment of epilepsy or the neurobiology of human cognition, and several books on the brain for the general public.