Abstract
The actual problem of audiology is to find out the causes of poor results of hearing aid, to forecast and develop ways to improve their effectiveness. Objective. To evaluate the noise immunity of the auditory system in persons with normal hearing and in patients with chronic sensorineural hearing loss (SNHL) with contralateral presentation of interference and the degree of influence of contralateral interference on speech intelligibility during the use of hearing aid. Patients and methods. 24 patients with bilateral symmetrical chronic moderate/moderately severe sensorineural hearing loss aged 38 to 83 years, fitted with modern digital hearing aids, and 10 persons with normal hearing were examined. According to the results of a comprehensive assessment of the central departments of the auditory system, two groups of patients with hearing loss were formed: without signs and with signs of central auditory processing disorder (CAPD). The noise immunity of the auditory system with contralateral presentation of tonal interference and the degree of its influence on speech intelligibility were investigated. Speech intelligibility was assessed by means of the Russian matrix sentence test (RuMatrix) in a free sound field. Results. In patients with CAPD, there was a significant decrease in the noise immunity of the auditory system, which worsened speech intelligibility and led to a decrease in the effectiveness of binaural prosthetics in speech perception in noise; an interhemispheric asymmetry of the effect of contralateral interference on speech intelligibility was noted.
Published Version
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