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Localization performance of unilateral cochlear implant users for speech, tones and noise

Localization performance of unilateral cochlear implant users for speech, tones and noise
Localization performance of unilateral cochlear implant users for speech, tones and noise
Bilateral cochlear implants aim to improve sound localization compared to monaural implants, among other potential benefits. Monaural cochlear implants should not support localization in the horizontal plane as there are no interaural level and time difference cues available, although some previous studies have suggested limited capability. As background to other studies of bilateral implantation, the localization abilities of 18 monaural cochlear implantees were investigated experimentally in an anechoic chamber, using various sound stimuli with different amounts of temporal information. The effects of head movement and reverberation were also investigated. Localization performance was found to be close to chance for all stimuli. It is confirmed that monaural cochlear implants are unable to support useful auditory sound localization, even when head movements are allowed.
unilateral, cochlear implants, localization
1467-0100
96-104
Buhagiar, R.
47071599-9054-4fe3-9d9e-93bb1bfd73a3
Lutman, M.E.
add34340-3241-4346-a668-8f51fdea6692
Brinton, J.C.
67c91309-96da-4e0b-88b5-cfe556624905
Eyles, J.E.
183486b3-50e3-4dc2-a4cb-ab04023cb83e
Buhagiar, R.
47071599-9054-4fe3-9d9e-93bb1bfd73a3
Lutman, M.E.
add34340-3241-4346-a668-8f51fdea6692
Brinton, J.C.
67c91309-96da-4e0b-88b5-cfe556624905
Eyles, J.E.
183486b3-50e3-4dc2-a4cb-ab04023cb83e

Buhagiar, R., Lutman, M.E., Brinton, J.C. and Eyles, J.E. (2004) Localization performance of unilateral cochlear implant users for speech, tones and noise. Cochlear Implants International, 5 (3), 96-104.

Record type: Article

Abstract

Bilateral cochlear implants aim to improve sound localization compared to monaural implants, among other potential benefits. Monaural cochlear implants should not support localization in the horizontal plane as there are no interaural level and time difference cues available, although some previous studies have suggested limited capability. As background to other studies of bilateral implantation, the localization abilities of 18 monaural cochlear implantees were investigated experimentally in an anechoic chamber, using various sound stimuli with different amounts of temporal information. The effects of head movement and reverberation were also investigated. Localization performance was found to be close to chance for all stimuli. It is confirmed that monaural cochlear implants are unable to support useful auditory sound localization, even when head movements are allowed.

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More information

Published date: 2004
Keywords: unilateral, cochlear implants, localization
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 28235
URI: https://eprints.soton.ac.uk/id/eprint/28235
ISSN: 1467-0100
PURE UUID: 73fffeb7-bfaf-4981-88a8-54104d521181

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Date deposited: 02 May 2006
Last modified: 17 Jul 2017 16:02

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