Jaynes relies on some earlier work that's been invalidated, like Bruno Snell's idea of archaic Greeks lacking a concept of an integrated body because they painted what appear to be individual limbs on vases from the geometric period. Snell wrote _The Discovery of the Mind_ in 1946. Since then archaeology has found amazing art like the Pylos Combat Agate from before the geometric period, demonstrating lifelike, realistic bodies rather than assemblages of limbs: the aesthetic of the geometric period was a choice, not evidence of a different kind of consciousness lacking a sense of self.