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Cochlear Implantation Improves Localization Ability in Patients With Unilateral Deafness

Dayse Távora‐Vieira, Geert De Ceulaer, Paul Govaerts, Gunesh P. Rajan

Open publisher page 114 citations

Abstract

In Brief Objectives: One of the major complaints of people with a single-sided deafness is the inability to localize sound sources. Evidence suggests that subjects with a hearing loss can benefit from the use of a cochlear implant (CI) in sound localization. This study aimed to determine the effect of CI use on localization ability in unilaterally deafened subjects. Design: Sixteen adult subjects with postlingual unilateral deafness, fitted with a CI on the deaf side, were included in this study. The auditory speech sounds evaluation (A§E) localization test was used to determine localization with a CI on (binaural) and a CI off (monaural). The root mean square error was used as a measure of the subject’s localization performance. Stratified analyses were performed to test the influence of gender, age of implantation (<55 years and >55 years), and the duration of deafness (<10 years and >10 years) on localization ability. Results: Subjects with a CI on localized significantly better than without a CI. Gender, age, and the duration of deafness had no effect on the localization ability of the subjects. Conclusions: Cochlear implantation is effective in improving localization abilities in subjects with unilateral deafness. The root mean square error dropped significantly with binaural hearing compared to monaural hearing. This study aimed to determine the effect of cochlear implant (CI) use on localization ability in unilaterally deafened subjects. Sixteen adult subjects with post-lingual unilateral deafness, fitted with a CI on the deaf side, were included in this study. The auditory speech sounds evaluation (A§E®) localization test was used to determine localization with a CI on and a CI off. Subjects with a CI on localized significantly better than those without a CI. Gender, age, and the duration of deafness had no effect on the localization ability of the subjects. Cochlear implantation is effective in improving localization abilities in subjects with unilateral deafness.

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What this paper is about

In Brief Objectives: One of the major complaints of people with a single-sided deafness is the inability to localize sound sources. Evidence suggests that subjects with a hearing loss can benefit from the use of a cochlear implant (CI) in sound localization. This study aimed to determine the effect of CI use on localization ability in unilaterally deafened subjects. Design: Sixteen adult subjects with postlingual unilateral deafness, fitted with a CI on the deaf side, were included in this study. The auditory speech sounds evaluation (A§E) localization test was used to determine localization with a CI on (binaural) and a CI off (monaural). The root mean square error was used as a measure of the subject’s localization performance. Stratified analyses were performed to test the influence of gender, age of implantation (<55 years and >55 years), and the duration of deafness (<10 years and >10 years) on localization ability. Results: Subjects with a CI on localized significantly better than without a CI. Gender, age, and the duration of deafness had no effect on the localization ability of the subjects. Conclusions: Cochlear implantation is effective in improving localization abilities in subjects with unilateral deafness. The root mean square error dropped significantly with binaural hearing compared to monaural hearing. This study aimed to determine the effect of cochlear implant (CI) use on localization ability in unilaterally deafened subjects. Sixteen adult subjects with post-lingual unilateral deafness, fitted with a CI on the deaf side, were included in this study. The auditory speech sounds evaluation (A§E®) localization test was used to determine localization with a CI on and a CI off. Subjects with a CI on localized significantly better than those without a CI. Gender, age, and the duration of deafness had no effect on the localization ability of the subjects. Cochlear implantation is effective in improving localization abilities in subjects with unilateral deafness.

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Available abstract

In Brief Objectives: One of the major complaints of people with a single-sided deafness is the inability to localize sound sources. Evidence suggests that subjects with a hearing loss can benefit from the use of a cochlear implant (CI) in sound localization. This study aimed to determine the effect of CI use on localization ability in unilaterally deafened subjects. Design: Sixteen adult subjects with postlingual unilateral deafness, fitted with a CI on the deaf side, were included in this study. The auditory speech sounds evaluation (A§E) localization test was used to determine localization with a CI on (binaural) and a CI off (monaural). The root mean square error was used as a measure of the subject’s localization performance. Stratified analyses were performed to test the influence of gender, age of implantation (<55 years and >55 years), and the duration of deafness (<10 years and >10 years) on localization ability. Results: Subjects with a CI on localized significantly better than without a CI. Gender, age, and the duration of deafness had no effect on the localization ability of the subjects. Conclusions: Cochlear implantation is effective in improving localization abilities in subjects with unilateral deafness. The root mean square error dropped significantly with binaural hearing compared to monaural hearing. This study aimed to determine the effect of cochlear implant (CI) use on localization ability in unilaterally deafened subjects. Sixteen adult subjects with post-lingual unilateral deafness, fitted with a CI on the deaf side, were included in this study. The auditory speech sounds evaluation (A§E®) localization test was used to determine localization with a CI on and a CI off. Subjects with a CI on localized significantly better than those without a CI. Gender, age, and the duration of deafness had no effect on the localization ability of the subjects. Cochlear implantation is effective in improving localization abilities in subjects with unilateral deafness.

Key concepts: Cochlear implantation, Audiology, Medicine, Cochlear implant

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