[Schizophreniform conditions in adolescent drug users differentiation possibilities using objective personality...

The authors report on schizophreniform states in juvenile drug consumers. The following psychodiagnostic instruments have been used in this investigation: a list of complaints, a self-estimation scale, a psychosis-depression-neurosis inventory (v. Zerssen), the Freiburg personality inventory (FPI, Fahrenberg, Selg and Hampel). According to clinical-psychopathological data in the course of psychosis, three groups of patients (N = 21) have been formed and defined as schizophrenia-, borderline-, intoxication-psychosis-groups. The report describes the procedure of two discriminant analyses by which the said three groups have been selected. In addition to methods of a cross section approach, the necessity of longitudinal observations is discussed by means of an own clinical example, considering also observations described in the literature.