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Auditory processing of servicemen exposed to occupational noise

PURPOSE: to evaluate the auditory processing of military personnel exposed to occupational noise. METHODS: 41 servicemen, exposed to noise for at least 10 years were evaluated, divided into Group A (n= 16), without hearing loss and Group B (n= 25), with hearing loss. The following evaluations were carried through: basic audilogic evaluation and auditory processing tests (low-filtered, SSW and Pitch Pattern Sequence tests). RESULTS: there were high incidences of auditory processing alterations, especially at low-filtered test (43.75% and 68% on groups A e B, respectively) and Pitch Pattern Sequence test (68.75% and 48%, on groups A e B, respectively). The SSW test was not efficient to evaluate the central hearing abilities of people exposed to high levels of sound pressure. CONCLUSION: the occupational noise exposure interferes in the auditory processing of military personnel. The alterations on central auditory pathways can be verified even if there is no any alteration on peripheral hearing.

Hearing; Noise, Occupational; Hearing Tests


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