One person can have both positive and negative symtoms. Andreasen & Olsen (1982) found in 52
"schizophrenics" 16 with negative symtoms, 18 with positive and 18 with mixed symtoms (Davison & Neale
(1990), Abnormal Psychology).
HRH Acrylica wrote:
> > Sally, I think the anti-psychiatry movement (Szaz, Laing & co) would tell
> > you that schizophrenia is a catch-all bucket for a whole list of
> > "disorders", and that they may not in fact be disorders at all. Currently,
> > schizophrenias are classified as paranoid, disorganised, catatonic,
> > undifferentiated and residual; "negative" and "positive" refer to symptoms
> > associated with various of these types.
> >
> > M
> Thanks for that!
> Just one last thing: can the positive and negative symptoms occur at the
> same time?
>
> It's all very confusing this; I've just read about Crow's Two Syndrome
> Hypothesis (Type I Schizophrenia characterised by pos symptoms, Type II by
> neg) and then read elsewhere that both sets of symptoms occur in the one
> disease Schizophrenia. Is there any common consensus on this?!
>
> Once again, thanks for helping me out
>
> Love, Sally
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