1. Bateson, Gregory (1972) Steps to an Ecology of Mind. New York: Ballantine Books.
2. Bloom, Ralph (1979) ‘Language Creation in the Manual Modality: A Preliminary Investigation’. Bachelor’s thesis, University of Chicago.
3. Damasio, Antonio (1994) Descartes’ Error: Emotion Reason, and the Human Brain. New York: Grosset/ G.P. Putnam’s Sons.
4. Damasio, Antonio (1999) The Feeling of What Happens: Body and Emotion in the Making of Consciousness. New York, San Diego, London: Harcourt Brace & Company.
5. Goffman, Erving (1964) ‘The Neglected Situation’. In John J. Gumperz and Dell Hymes (eds)The Ethnography of Communication. American Anthropologist 66, 6, pt. II, 133–6.