Julian Jaynes (February 27, 1920 – November 21, 1997) was an American researcher in psychology at Yale and Princeton for nearly 25 years, best known for his 1976 book The Origin of Consciousness in the Breakdown of the Bicameral Mind. His career was dedicated to the problem of consciousness, "...the difference between what others see of us and our sense of our inner selves and the deep feelings that sustain it. ... Men have been conscious of the problem of consciousness almost since consciousness began." Jaynes' solution touches on many disciplines, including neuroscience, linguistics, psychology, archeology, history, religion and analysis of ancient texts.
Jaynes was born and lived in West Newton, Massachusetts, son of Julian Clifford Jaynes (1854–1922), a Unitarian minister, and Clara Bullard Jaynes (1884–1980). He had an older sister, Helen, and a younger brother, Robert. The family had a summer home in Keppoch, Prince Edward Island, which was a place Jaynes loved, and which gave him a Canadian connection for his entire life.
In the summer of 1939 he registered to attend Harvard University but took a scholarship from McGill University, where he graduated in 1941 with a bachelor's degree in psychology, and then began graduate studies at the University of Toronto to learn more about the brain. His studies were interrupted during the Second World War: because of his Unitarian principles, he applied for and received official recognition as a conscientious objector, but refused to comply with the U.S. government's law for pacifists; Jaynes spent three years in the penitentiary at Lewisburg, Pennsylvania, working in the prison hospital. On his release in 1946 he enrolled at Yale University hoping that in animal behavior he would find clues to the beginnings of consciousness. Jaynes received his master's degree in 1948, and then refused to accept his doctorate, again on a dispute of "principle" regarding educational credentials. After Yale, Jaynes spent several years in England working as an actor and playwright.