[The behaviour of visually evoked potentials (VEP) in schizophrenia under gradually rising doses of fluphenazine dihydrochloride (author's transl)].

The paper describes a study of visually evoked potentials (VEP) during 50 days in a schizophrenic female patient to whom we administered increasing dosages (from 150 mg up to 600 mg) and afterwards progressively decreasing ones (from 600 mg to 20 mg) of 10-(3-[4-(2-hydroxyethyl)-1-piperazinyl]-propyl)-2-trifluoromethylphenothiazine (fluphenazine-dihydrochloride). We tried to establish a relation between the aspect of latencies and form of curves and the dosages. We also discussed a possible correspondence between VEP and psychopathological changes.