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Corrective binaural processing for bilateral cochlear implant patients
Although bilateral cochlear implant users receive input to both ears, they nonetheless have relatively poor localization abilities in the horizontal plane. This is likely because of the two binaural cues, they have good sensitivity to interaural differences of level (inter-aural level differences, o...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Public Library of Science
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5774684/ https://www.ncbi.nlm.nih.gov/pubmed/29351279 http://dx.doi.org/10.1371/journal.pone.0187965 |
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author | Brown, Christopher A. |
author_facet | Brown, Christopher A. |
author_sort | Brown, Christopher A. |
collection | PubMed |
description | Although bilateral cochlear implant users receive input to both ears, they nonetheless have relatively poor localization abilities in the horizontal plane. This is likely because of the two binaural cues, they have good sensitivity to interaural differences of level (inter-aural level differences, or ILDs), but not those of time (inter-aural time differences; ITDs). Here, localization performance is assessed in six bilateral cochlear implant patients when instantaneous ITDs are measured and converted to ILDs, a strategy that results in larger-than-typical ILDs. The added ILDs are corrective, in that they are derived from individual listener performance across both frequency and azimuth, so that they are small where a listener performs well, and increase as performance deviates from ideal. Results show significantly improved localization performance as a result of this strategy, with two of the six listeners achieving levels of performance typically observed in NH listeners. |
format | Online Article Text |
id | pubmed-5774684 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-57746842018-01-26 Corrective binaural processing for bilateral cochlear implant patients Brown, Christopher A. PLoS One Research Article Although bilateral cochlear implant users receive input to both ears, they nonetheless have relatively poor localization abilities in the horizontal plane. This is likely because of the two binaural cues, they have good sensitivity to interaural differences of level (inter-aural level differences, or ILDs), but not those of time (inter-aural time differences; ITDs). Here, localization performance is assessed in six bilateral cochlear implant patients when instantaneous ITDs are measured and converted to ILDs, a strategy that results in larger-than-typical ILDs. The added ILDs are corrective, in that they are derived from individual listener performance across both frequency and azimuth, so that they are small where a listener performs well, and increase as performance deviates from ideal. Results show significantly improved localization performance as a result of this strategy, with two of the six listeners achieving levels of performance typically observed in NH listeners. Public Library of Science 2018-01-19 /pmc/articles/PMC5774684/ /pubmed/29351279 http://dx.doi.org/10.1371/journal.pone.0187965 Text en © 2018 Christopher A. Brown http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Brown, Christopher A. Corrective binaural processing for bilateral cochlear implant patients |
title | Corrective binaural processing for bilateral cochlear implant patients |
title_full | Corrective binaural processing for bilateral cochlear implant patients |
title_fullStr | Corrective binaural processing for bilateral cochlear implant patients |
title_full_unstemmed | Corrective binaural processing for bilateral cochlear implant patients |
title_short | Corrective binaural processing for bilateral cochlear implant patients |
title_sort | corrective binaural processing for bilateral cochlear implant patients |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5774684/ https://www.ncbi.nlm.nih.gov/pubmed/29351279 http://dx.doi.org/10.1371/journal.pone.0187965 |
work_keys_str_mv | AT brownchristophera correctivebinauralprocessingforbilateralcochlearimplantpatients |