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Integration of acoustic and electric hearing is better in the same ear than across ears
Advances in cochlear implant (CI) technology allow for acoustic and electric hearing to be combined within the same ear (electric-acoustic stimulation, or EAS) and/or across ears (bimodal listening). Integration efficiency (IE; the ratio between observed and predicted performance for acoustic-electr...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624923/ https://www.ncbi.nlm.nih.gov/pubmed/28970567 http://dx.doi.org/10.1038/s41598-017-12298-3 |
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author | Fu, Qian-Jie Galvin, John J. Wang, Xiaosong |
author_facet | Fu, Qian-Jie Galvin, John J. Wang, Xiaosong |
author_sort | Fu, Qian-Jie |
collection | PubMed |
description | Advances in cochlear implant (CI) technology allow for acoustic and electric hearing to be combined within the same ear (electric-acoustic stimulation, or EAS) and/or across ears (bimodal listening). Integration efficiency (IE; the ratio between observed and predicted performance for acoustic-electric hearing) can be used to estimate how well acoustic and electric hearing are combined. The goal of this study was to evaluate factors that affect IE in EAS and bimodal listening. Vowel recognition was measured in normal-hearing subjects listening to simulations of unimodal, EAS, and bimodal listening. The input/output frequency range for acoustic hearing was 0.1–0.6 kHz. For CI simulations, the output frequency range was 1.2–8.0 kHz to simulate a shallow insertion depth and the input frequency range was varied to provide increasing amounts of speech information and tonotopic mismatch. Performance was best when acoustic and electric hearing was combined in the same ear. IE was significantly better for EAS than for bimodal listening; IE was sensitive to tonotopic mismatch for EAS, but not for bimodal listening. These simulation results suggest acoustic and electric hearing may be more effectively and efficiently combined within rather than across ears, and that tonotopic mismatch should be minimized to maximize the benefit of acoustic-electric hearing, especially for EAS. |
format | Online Article Text |
id | pubmed-5624923 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-56249232017-10-12 Integration of acoustic and electric hearing is better in the same ear than across ears Fu, Qian-Jie Galvin, John J. Wang, Xiaosong Sci Rep Article Advances in cochlear implant (CI) technology allow for acoustic and electric hearing to be combined within the same ear (electric-acoustic stimulation, or EAS) and/or across ears (bimodal listening). Integration efficiency (IE; the ratio between observed and predicted performance for acoustic-electric hearing) can be used to estimate how well acoustic and electric hearing are combined. The goal of this study was to evaluate factors that affect IE in EAS and bimodal listening. Vowel recognition was measured in normal-hearing subjects listening to simulations of unimodal, EAS, and bimodal listening. The input/output frequency range for acoustic hearing was 0.1–0.6 kHz. For CI simulations, the output frequency range was 1.2–8.0 kHz to simulate a shallow insertion depth and the input frequency range was varied to provide increasing amounts of speech information and tonotopic mismatch. Performance was best when acoustic and electric hearing was combined in the same ear. IE was significantly better for EAS than for bimodal listening; IE was sensitive to tonotopic mismatch for EAS, but not for bimodal listening. These simulation results suggest acoustic and electric hearing may be more effectively and efficiently combined within rather than across ears, and that tonotopic mismatch should be minimized to maximize the benefit of acoustic-electric hearing, especially for EAS. Nature Publishing Group UK 2017-10-02 /pmc/articles/PMC5624923/ /pubmed/28970567 http://dx.doi.org/10.1038/s41598-017-12298-3 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Fu, Qian-Jie Galvin, John J. Wang, Xiaosong Integration of acoustic and electric hearing is better in the same ear than across ears |
title | Integration of acoustic and electric hearing is better in the same ear than across ears |
title_full | Integration of acoustic and electric hearing is better in the same ear than across ears |
title_fullStr | Integration of acoustic and electric hearing is better in the same ear than across ears |
title_full_unstemmed | Integration of acoustic and electric hearing is better in the same ear than across ears |
title_short | Integration of acoustic and electric hearing is better in the same ear than across ears |
title_sort | integration of acoustic and electric hearing is better in the same ear than across ears |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624923/ https://www.ncbi.nlm.nih.gov/pubmed/28970567 http://dx.doi.org/10.1038/s41598-017-12298-3 |
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