Julian Jaynes describes an earlier mentality prior to the development of subjective consciousness called the bicameral mind, in which the brain’s hemispheres operated in a less integrated manner than they do today. Jaynes argues that the brain used language to convey experience in the right hemisphere to the left hemisphere in the form of what we would today call an auditory hallucination. Language in the right hemisphere at the time was considered controversial, but has since been confirmed in numerous studies. Below is a small sample of research supporting this aspect of Jaynes’s theory.
- The Role of the Right Hemisphere in the Interpretation of Figurative Aspects of Language: A Positron Emission Tomography Activation Study Bottini, G., R. Corcoran, R. Sterzi, E. Paulesu, P. Schenone, P. Scarpa, R.S. Frackowiak, and C.D. Frith, Brain, 1994, 117, 6, 1241–1253.
- Metaphor and Metacommunication in Schizophrenic Language Frow, John, Social Semiotics, 2001, 11, 3, 275-287.
- Language Lateralization in Healthy Right-Handers Knecht, S., M. Deppe, B. Dräger, L. Bobe, H. Lohmann, E.-B. Ringelstein, and H. Henningsen, Brain, January 2000, 123, 1, 74–81.
- Right Hemisphere Language Functions and Schizophrenia: The Forgotten Hemisphere? Mitchell, Rachel L. and Tim J. Crow, Brain, 2005, 128, 963–978.
- The Unintegrated Right Cerebral Hemispheric Consciousness as Alien Intruder: A Possible Mechanism for Schneiderian Delusions in Schizophrenia? Nasrallah, Henry A., Comprehensive Psychiatry, 1985, 26, 3, 273–282.