Student- Theoretical Physics, University of Nottingham

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Can deaf people be schizophrenic?

I happened to chance upon a book by Julian Jaynes, 'The Origin of Consciousness in the Breakdown of the Bicameral Mind' which projects (I shall explain the idea vaguely) the idea that humans had 'two voices in their heads' and eventually, one of these 'voices' dissipate away leaving behind one voice, which can explain the origin of consciousness. In cases when one voice doesn't dissipate, the result is schizophrenia.

Now, Here's my question. Consider a person born with hearing inabilities. This would disable him from hearing all sounds in his environment. Would he still have the 'voice' in his head? How does this 'voice' differ? For someone who hasn't heard anything in his/ her life (assuming, he doesn't get trained to overcome his disability), is schizophrenia is possibility?

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    May 3 2011: I am not a psychologist but from the standard defintions of schizophrenia I know that people who suffer tend to mistake their own thoughts and impressions as coming from something external to themselves. I am guessing that if schizophrenics have any way of representing thoughts and impressions without auditory sensation they would be able to percieve it as a message from an external being.
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    Apr 28 2011: Theoritically speaking, why not? As schizoprenia comes with specific condition of neurotransmittor of brain with genetic pre-disposition to great extent. So even if someone is deaf it can happen.
    Auditory hallucination is just one face of it, which deaf people may not experience but there are other faces of it which are Paranoia & Disorganized thinking. So it may happen even to deaf logically though I have no known example to mention here.
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    Apr 28 2011: have you ever heard of a deaf people who suffers from schizophrenia ?i havent .
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    Apr 27 2011: This is fascinating. When I was in grad school the neuroscience prof told us that the singular piece of evidence of schizophrenia was the ability to actually 'hear' things in dreams. As this was not my major interest, I filed that away but never pursued it. Did you google the question? Perhaps you could email one of the world experts on schizophrenia because it is unlikely that any lay person will have the answer.
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    Apr 27 2011: Wow! I have no idea, but it's a fascinating question.