[Accessory symptoms of schizophrenia: E. Bleuler's concept].

The analysis of E. Bleuler's concept of accessory symptoms of schizophrenia: delusions, hallucinations, depersonalization disorders, splitting of the ego, memory disorders, catatonic symptoms and acute syndromes (manic and melancholic states, acute paranoia, twilight states, clouding of consciousness, confusion, fugues and dipsomania) is presented. The relationship of accessory symptoms with primary and secondary schizophrenic symptoms according to the second concept of E. Bleuler is highlighted. The mechanisms of the origin of psychopathological accessory symptoms and E. Bleuler's understanding of many schizophrenic psychopathological symptoms as a quantitative increasing of a normal psychic phenomenon are discussed.