Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, and the Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge
Dr. Barlow's address is Department of Neurology, Massachusetts General Hospital, Fruit Street, Boston, Massachusetts 02114.
This work was aided by USPHS Research Career Development award No. 5-K3-NS-9201 and by Research grant No. NS-03752 from the National Institute of Neurological Diseases and Stroke, and in part by the Ellen and Harold Wald Parkinson's Fund at the Massachusetts General Hospital. Submitted for publication March 31, 1970; accepted May 5, 1970.
