The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality

The benefits of combining a cochlear implant (CI) and a hearing aid (HA) in opposite ears on speech perception were examined in 15 adult unilateral CI recipients who regularly use a contralateral HA. A within-subjects design was carried out to assess speech intelligibility testing, listening effort...

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Main Authors: Elke M. J. Devocht, A. Miranda L. Janssen, Josef Chalupper, Robert J. Stokroos, Erwin L. J. George
Format: Article
Language:English
Published: SAGE Publishing 2017-09-01
Series:Trends in Hearing
Online Access:https://doi.org/10.1177/2331216517727900
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author Elke M. J. Devocht
A. Miranda L. Janssen
Josef Chalupper
Robert J. Stokroos
Erwin L. J. George
author_facet Elke M. J. Devocht
A. Miranda L. Janssen
Josef Chalupper
Robert J. Stokroos
Erwin L. J. George
author_sort Elke M. J. Devocht
collection DOAJ
description The benefits of combining a cochlear implant (CI) and a hearing aid (HA) in opposite ears on speech perception were examined in 15 adult unilateral CI recipients who regularly use a contralateral HA. A within-subjects design was carried out to assess speech intelligibility testing, listening effort ratings, and a sound quality questionnaire for the conditions CI alone, CIHA together, and HA alone when applicable. The primary outcome of bimodal benefit, defined as the difference between CIHA and CI, was statistically significant for speech intelligibility in quiet as well as for intelligibility in noise across tested spatial conditions. A reduction in effort on top of intelligibility at the highest tested signal-to-noise ratio was found. Moreover, the bimodal listening situation was rated to sound more voluminous, less tinny, and less unpleasant than CI alone. Listening effort and sound quality emerged as feasible and relevant measures to demonstrate bimodal benefit across a clinically representative range of bimodal users. These extended dimensions of speech perception can shed more light on the array of benefits provided by complementing a CI with a contralateral HA.
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spelling doaj.art-c1a9333f1c2044daa6f67ff69c3b01582022-12-21T18:57:16ZengSAGE PublishingTrends in Hearing2331-21652017-09-012110.1177/2331216517727900The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound QualityElke M. J. Devocht0A. Miranda L. Janssen1Josef Chalupper2Robert J. Stokroos3Erwin L. J. George4Department of ENT/Audiology, School for Mental Health and Neuroscience (MHENS), Maastricht University Medical Center (MUMC+), The NetherlandsDepartment of Methodology and Statistics, School for Public Health and Primary Care (CAPHRI), Maastricht University (UM), The NetherlandsAdvanced Bionics European Research Centre, Hannover, GermanyDepartment of ENT/Audiology, School for Mental Health and Neuroscience (MHENS), Maastricht University Medical Center (MUMC+), The NetherlandsDepartment of ENT/Audiology, School for Mental Health and Neuroscience (MHENS), Maastricht University Medical Center (MUMC+), The NetherlandsThe benefits of combining a cochlear implant (CI) and a hearing aid (HA) in opposite ears on speech perception were examined in 15 adult unilateral CI recipients who regularly use a contralateral HA. A within-subjects design was carried out to assess speech intelligibility testing, listening effort ratings, and a sound quality questionnaire for the conditions CI alone, CIHA together, and HA alone when applicable. The primary outcome of bimodal benefit, defined as the difference between CIHA and CI, was statistically significant for speech intelligibility in quiet as well as for intelligibility in noise across tested spatial conditions. A reduction in effort on top of intelligibility at the highest tested signal-to-noise ratio was found. Moreover, the bimodal listening situation was rated to sound more voluminous, less tinny, and less unpleasant than CI alone. Listening effort and sound quality emerged as feasible and relevant measures to demonstrate bimodal benefit across a clinically representative range of bimodal users. These extended dimensions of speech perception can shed more light on the array of benefits provided by complementing a CI with a contralateral HA.https://doi.org/10.1177/2331216517727900
spellingShingle Elke M. J. Devocht
A. Miranda L. Janssen
Josef Chalupper
Robert J. Stokroos
Erwin L. J. George
The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality
Trends in Hearing
title The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality
title_full The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality
title_fullStr The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality
title_full_unstemmed The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality
title_short The Benefits of Bimodal Aiding on Extended Dimensions of Speech Perception: Intelligibility, Listening Effort, and Sound Quality
title_sort benefits of bimodal aiding on extended dimensions of speech perception intelligibility listening effort and sound quality
url https://doi.org/10.1177/2331216517727900
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