[Adaptive reactions in the auditory analyzer of patients with schizophrenia, presenile psychoses and alcoholic hallucinosis].

Some results of audiometric studies in 272 patients with different psychoses (schizophrenia, presenile psychoses, alcoholic hallucinoses) were analyzed. The authors examined the auditory adaptation to threshold stimula and the time of reverse adaptation. In most of the cases adaptation was not attained or was lengthened. These studies did not reveal any nosological specificity in adaptational disturbances. In cases of auditory hallucinations the index of adaptational time had no principal differences either. These facts gave ground to consider the adaptational shifts as general nonspecific mechanisms in the pathogenesis of psychoses. An analysis of audiometric data make it possible to use them for prognostical purposes.