Hutter studied physiology at Chelsea Polytechnic (now
Chelsea College of Arts) and chemistry at Birkbeck College (now
Birkbeck, University of London) at wartime evening classes. When the war ended, he took the
BSc Physiology course at
University College London. His initial research was on acetylcholine actions in nerve and muscle. His work developed to address the permeation of potassium ions in muscle cells. During a
Rockefeller travelling scholarship in
Baltimore, at the laboratory of
Stephen Kuffler, he worked with another visitor, Wolfgang Trautwein. They made the first recordings using microelectrodes of the
pacemaker potential in heart muscle to study the
cardiac pacemaker. They researched the actions of
acetylcholine (which slows heart rate) or
adrenaline (which speeds it). Their recordings, made in tortoise heart, have become iconic medical and physiological textbook images of these phenomena. Another major research interest was the physiology of the chloride ion, a field which he summarised in a personal review. Hutter was a lecturer in the Department of Physiology at University College, London until 1971 when he was appointed
Regius Professor of Physiology at the
University of Glasgow. He retired from his chair in 1990. ==Later life==