[Unusual hallucinatory forms of paranoid disorders in late schizophrenia].

The authors studied 62 patients with late schizophrenia with the predominance of elementary misperceptions. The main variants of such psychoses with auditory, olfactory and tactile perceptive disturbances have been identified. The authors also ascertained common typological signs distinguishing these psychoses from the classical paranoids of late age. A possible role of the age and environmental factors in the formation of the above psychoses is considered.