Gelfand on mathematics and neurophysiology

It is well known that Gelfand’s scientific interests were not limited to mathematics. One of non-mathematical field where Israel Moiseevich Gelfand worked was neurophysiology. In late 1950s, he organized neurophysiological seminar and few years later he spearheaded two neurophysiological research groups: one at the Institute of Biophysics (after 1967, this group moved to the Institute for the Problems of Information Transmission), and another at Moscow University. As a member of one of these groups, I was lucky to work with Gelfand for about 30 years.