The aim of this article was to study sound source localization by cochlear implant (CI) listeners with low-frequency (LF) acoustic hearing in both the operated ear and in the contralateral ear. Eight CI listeners had symmetrical LF acoustic hearing and 4 had asymmetrical LF acoustic hearing. The effects of two variables were assessed: (i) the symmetry of the LF thresholds in the two ears and (ii) the presence/absence of bilateral acoustic amplification. Stimuli consisted of low-pass, high-pass, and wideband noise bursts presented in the frontal horizontal plane. Localization accuracy was 23° of error for the symmetrical listeners and 76° of error for the asymmetrical listeners. The presence of a unilateral CI used in conjunction with bilateral LF acoustic hearing does not impair sound source localization accuracy, but amplification for acoustic hearing can be detrimental to sound source localization accuracy.
Details
- Sound Source Localization by Hearing Preservation Patients With and Without Symmetrical Low-Frequency Acoustic Hearing
- Loiselle, Louise (Author)
- Dorman, Michael (Author)
- Yost, William (Author)
- Gifford, Rene (Author)
- College of Health Solutions (Contributor)
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Digital object identifier: 10.1159/000367883
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Identifier TypeInternational standard serial numberIdentifier Value1420-3030
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Identifier TypeInternational standard serial numberIdentifier Value1421-9700
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This is the authors' final, peer-reviewed accepted manuscript. The final version as published can be viewed at http://dx.doi.org/10.1159/000367883.
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This is a suggested citation. Consult the appropriate style guide for specific citation guidelines.
Loiselle, L; Dorman, M F; Yost, W.; Gifford, R. (2015) Sound source localization by hearing preservation patients with and without symmetric, low-frequency acoustic hearing. Audiology and Neuro-otology, 20(3).166-171. http://dx.doi.org/10.1159/000367883