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Localization by unilateral BAHA users.

Jack J Wazen·Soha N Ghossaini·Jaclyn B Spitzer·Mary Kuller
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Abstract

OBJECTIVES: Patients with unilateral hearing loss report difficulty hearing conversation on their impaired side, localizing sound, and understanding of speech in background noise. The bone-anchored cochlear stimulator (BAHA) (Entific, Gothenburg, Sweden) has been shown to improve performance in persons with unilateral severe-profound sensorineural loss (USNHL). The purpose of this study is to evaluate the effectiveness of BAHA in sound localization for USNHL listeners. STUDY DESIGN: Prospective study of 12 USNHL subjects, 9 of whom received implants on the poorer hearing side. A control group of 10 normal hearing subjects were assessed for comparison. Localization with and without BAHA was assessed using an array of 8 speakers at head level separated by 45 degrees. Error analysis matrix was generated to evaluate the confusions, accuracy in response, and laterality judgment. RESULTS: The average accuracy of speaker localization was 16% in the unaided condition, with no improvement with BAHA use. Laterality judgment was poorer than 43% in both aided and nonaided conditions. CONCLUSIONS: Patients with UNSNHL had poor sound localization and laterality judgment abilities that did not improve with BAHA use.

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AgedCochlear ImplantsFemaleHearing Loss, SensorineuralHearing Loss, UnilateralHumansMaleMiddle AgedProspective StudiesSound LocalizationJournal Article

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Jack J Wazen, Soha N Ghossaini, Jaclyn B Spitzer, Mary Kuller. 2005. Localization by unilateral BAHA users.. https://doi.org/10.1016/j.otohns.2005.03.014

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