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Effects of noise on integration of acoustic and electric hearing within and across ears

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datacite.contributor.supervisoreditor: Nyeem, Hussain Md Abu
dc.contributor.authorWillis, Shelby
dc.contributor.authorMoore, Brian C. J.
dc.contributor.authorGalvin, John J.
dc.contributor.authorFu, Qian-Jie
dc.contributor.orcidMoore, Brian C. J. [0000-0001-7071-0671]
dc.contributor.orcidFu, Qian-Jie [0000-0003-3494-7633]
dc.date.accessioned2020-10-15T23:01:57Z
dc.date.available2020-10-15T23:01:57Z
dc.date.issued2020-10-15
dc.date.submitted2020-07-09
dc.date.updated2020-10-15T23:01:56Z
dc.description.abstractIn bimodal listening, cochlear implant (CI) users combine electric hearing (EH) in one ear and acoustic hearing (AH) in the other ear. In electric-acoustic stimulation (EAS), CI users combine EH and AH in the same ear. In quiet, integration of EH and AH has been shown to be better with EAS, but with greater sensitivity to tonotopic mismatch in EH. The goal of the present study was to evaluate how external noise might affect integration of AH and EH within or across ears. Recognition of monosyllabic words was measured for normal-hearing subjects listening to simulations of unimodal (AH or EH alone), EAS, and bimodal listening in quiet and in speech-shaped steady noise (10 dB, 0 dB signal-to-noise ratio). The input/output frequency range for AH was 0.1–0.6 kHz. EH was simulated using an 8-channel noise vocoder. The output frequency range was 1.2–8.0 kHz to simulate a shallow insertion depth. The input frequency range was either matched (1.2–8.0 kHz) or mismatched (0.6–8.0 kHz) to the output frequency range; the mismatched input range maximized the amount of speech information, while the matched input resulted in some speech information loss. In quiet, tonotopic mismatch differently affected EAS and bimodal performance. In noise, EAS and bimodal performance was similarly affected by tonotopic mismatch. The data suggest that tonotopic mismatch may differently affect integration of EH and AH in quiet and in noise.
dc.identifier.doi10.17863/CAM.58653
dc.identifier.eissn1932-6203
dc.identifier.otherpone-d-20-21206
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/311561
dc.languageen
dc.publisherPublic Library of Science
dc.rightsAttribution 4.0 International (CC BY 4.0)en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectResearch Article
dc.subjectBiology and life sciences
dc.subjectMedicine and health sciences
dc.subjectPhysical sciences
dc.subjectSocial sciences
dc.subjectEngineering and technology
dc.titleEffects of noise on integration of acoustic and electric hearing within and across ears
dc.typeArticle
dcterms.dateAccepted2020-10-01
prism.issueIdentifier10
prism.publicationNamePLOS ONE
prism.volume15
pubs.funder-project-idNational Institute on Deafness and Other Communication Disorders (R01-DC016883)
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1371/journal.pone.0240752

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