[Ecmnesia in the late period of schizophrenia progressing in an unfavorable course].

Ecmnestic disturbances were revealed in 170 out of 260 schizophrenic patients who have lived up to the old age. In all the patients the disease took an unfavourable course (paranoid and malignant schizophrenia). The ecmnestic disturbances appeared to be rather diverse in their contents, and were encountered in the structure of various psychopathological manifestations both productive and deficient. Two types of the ecmnestic disturbances were differentiated, and namely, ecmnesia of delay and ecmnesia of regression of the psychic development. The role of the age factor in the formation of each type of those disturbances is demonstrated.