Peter Suedfeld

Peter Suedfeld (born August 30, 1935) is a Hungarian-Canadian professor emeritus of psychology at the University of British Columbia.

Suedfeld is a researcher in the field of Restricted Environmental Stimulation Therapy (REST), and was the founding President of IRIS (the International REST Investigators Society). His archival and field research studied the reactions and adaptation of crews in the Antarctic, the Canadian High Arctic, and space vehicles. The findings were among the earliest to emphasize the positive and negative aspects of these experiences. He urged space agencies to consider new methods for enhancing astronauts’ psychological well-being, rather than focusing on treating adverse effects.