The thought disorders that occur
in schizophrenia characterized by a splitting and loosening
of associations, a concreteness of abstract thought,
and an impairment in goal-directed thought, may be less
prominent in amphetamine induced psychosis [55].
However, distinguishing the two types of psychosis on
the basis of acute symptoms is probably very difficult
[56]. The similarities between the two conditions are, in
fact, so pronounced that this has been used as an argument
for using amphetamine-induced psychosis as a
model for primary psychotic disorders [21,54,57-59].