Need information regarding hallucinatory diseases
What are the main causes of schizophrenia? Is it possible to be brought on by trauma or through nurture? Or is it mainly genetic?
Just how realistic are such hallucinations? What is the level of interactivity between the person and hallucination? I.e. Would it be possible for a schizophrenic to imagine an entire person (like an imaginary friend, only much more real)? And if it's possible to hallucinate an entire being, could they, say, carry out a conversation?
How difficult is it for an average schizophrenic to differentiate hallucination and reality? If someone has a recurring hallucination, will they eventually realize it is a hallucination and not reality?
What is the probability that only one type of hallucination would be present (like, going along with the imaginary friend bit, that the person would only see the friend and wouldn't have any other hallucinations)?
Please realize that this is a work of fiction and a bit of artistic license may be applied. I thank you greatly for any light you can shed on this matter.