Julian Jaynes

Groups of bicameral men certainly persisted until the downfall of the Judean monarchy, but whether in association with other tribes or with any organization to their hallucinated voices in the form of gods, we don't know. They are often referred to as the 'sons of nabiim,' indicating that there was probably a strong genetic basis for this type of remaining bicamerality. It is, I think, the same genetic basis that remains with us as part of the etiology of schizophrenia.