Neurophysiologist who was best known for his work on the biological basis of schizophrenia. In his long and prolific career he has written over 500 scientific papers and nine books.
He attended the University of Chicago when he was 15 years old.
He helped establish the Mental Health Research Institute in Michigan with his second wife Leona Bachrach Chalkey.
He married the psychiatrist
He was influenced by Sigmund Freud.