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The instrument pictured here was designed by Dr. Kenneth G. McKenzie in the 1940s to bring precision to prefrontal leucotomy, or lobotomy. It is part of the exhibition Brainwork, now on view at the Canadian Museum of Health and Medicine in Toronto to mark the 75th anniversary of neurosurgery in this country. McKenzie received the first Canadian appointment in that specialty at the Toronto General Hospital and the University of Toronto in 1923. His contemporary in the field, Wilder Penfield, took up an appointment at the Royal Victoria Hospital and McGill University five years later.
The fact that Egas Moniz,...