The Origin of Consciousness in the Breakdown of the Bicameral Mind

The 1976 book The Origin of Consciousness in the Breakdown of the Bicameral Mind, by psychologist Julian Jaynes proposed that until the beginnings of historic times schizophrenia or a closely similar condition was the normal human consciousness; a "bicameral mind" in which a normal state of low affect? suitable for routine activities would be interrupted in moments of crisis by "mysterious voices" giving instructions, which early people characterized as interventions from the gods. This theory was briefly controversial but continued work has not provided additional support.