Julian Jaynes

It is interesting to note parenthetically that there is no hypostasis for hearing as there is for sight. Even today, we do not hear with the mind's ear as we see with the mind's eye. Nor do we refer to intelligent minds as loud, in the same way we say they are bright. This is probably because hearing was the very essence of the bicameral mind, and as such has those differences from vision which I discussed in 1.4. The coming of consciousness can in a certain vague sense be construed as a shift from an auditory mind to a visual mind.