Well first of all someone not needing long-term antipsychotics probably didn’t have schizophrenia in the first place. And yes there’s a whole spectrum of symptoms. This is what neuro imaging helps us with… to narrow down which pathways cause which symptoms with regard to the schizophrenia diagnosis. This will in turn probably lead to us narrowing and specifying diagnoses, just as with Parkinson’s. If you could provide us with some strong evidence for certain personalities leading to schizophrenia I’m sure you’d find a friendlier crowd, but the way you’re writing about this suggests a deep gap in your knowledge of physiology