Clinico-physiological report of the case of a young man with schizophrenic symptoms; the study showed that this patient exhibited some schizophreniform manifestations at the puberty but at this moment the diagnosis was not ascertained, being considered as of neurotic origin. The Rorschachtest then performed was normal and exhibited syntonic patterns. Conversely, at 18 years 9 months, the clinical picture is of schizophrenic frame; the Rorschach-test shows many abnormalities with the fading of syntonic symptoms; however, the pattern was not "specifically" schizophrenic. At the van Lennep "four picture test" there was a picture of a dissociative disturbance in the sense of schizophrenia.