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How is the McGurk effect modulated by Cued Speech in deaf and hearing adults?
Speech perception for both hearing and deaf people involves an integrative process between auditory and lip-reading information. In order to disambiguate information from lips, manual cues from Cued Speech may be added. Cued Speech (CS) is a system of manual aids developed to help deaf people to cle...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2014
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4032946/ https://www.ncbi.nlm.nih.gov/pubmed/24904451 http://dx.doi.org/10.3389/fpsyg.2014.00416 |
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author | Bayard, Clémence Colin, Cécile Leybaert, Jacqueline |
author_facet | Bayard, Clémence Colin, Cécile Leybaert, Jacqueline |
author_sort | Bayard, Clémence |
collection | PubMed |
description | Speech perception for both hearing and deaf people involves an integrative process between auditory and lip-reading information. In order to disambiguate information from lips, manual cues from Cued Speech may be added. Cued Speech (CS) is a system of manual aids developed to help deaf people to clearly and completely understand speech visually (Cornett, 1967). Within this system, both labial and manual information, as lone input sources, remain ambiguous. Perceivers, therefore, have to combine both types of information in order to get one coherent percept. In this study, we examined how audio-visual (AV) integration is affected by the presence of manual cues and on which form of information (auditory, labial or manual) the CS receptors primarily rely. To address this issue, we designed a unique experiment that implemented the use of AV McGurk stimuli (audio /pa/ and lip-reading /ka/) which were produced with or without manual cues. The manual cue was congruent with either auditory information, lip information or the expected fusion. Participants were asked to repeat the perceived syllable aloud. Their responses were then classified into four categories: audio (when the response was /pa/), lip-reading (when the response was /ka/), fusion (when the response was /ta/) and other (when the response was something other than /pa/, /ka/ or /ta/). Data were collected from hearing impaired individuals who were experts in CS (all of which had either cochlear implants or binaural hearing aids; N = 8), hearing-individuals who were experts in CS (N = 14) and hearing-individuals who were completely naïve of CS (N = 15). Results confirmed that, like hearing-people, deaf people can merge auditory and lip-reading information into a single unified percept. Without manual cues, McGurk stimuli induced the same percentage of fusion responses in both groups. Results also suggest that manual cues can modify the AV integration and that their impact differs between hearing and deaf people. |
format | Online Article Text |
id | pubmed-4032946 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-40329462014-06-05 How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? Bayard, Clémence Colin, Cécile Leybaert, Jacqueline Front Psychol Psychology Speech perception for both hearing and deaf people involves an integrative process between auditory and lip-reading information. In order to disambiguate information from lips, manual cues from Cued Speech may be added. Cued Speech (CS) is a system of manual aids developed to help deaf people to clearly and completely understand speech visually (Cornett, 1967). Within this system, both labial and manual information, as lone input sources, remain ambiguous. Perceivers, therefore, have to combine both types of information in order to get one coherent percept. In this study, we examined how audio-visual (AV) integration is affected by the presence of manual cues and on which form of information (auditory, labial or manual) the CS receptors primarily rely. To address this issue, we designed a unique experiment that implemented the use of AV McGurk stimuli (audio /pa/ and lip-reading /ka/) which were produced with or without manual cues. The manual cue was congruent with either auditory information, lip information or the expected fusion. Participants were asked to repeat the perceived syllable aloud. Their responses were then classified into four categories: audio (when the response was /pa/), lip-reading (when the response was /ka/), fusion (when the response was /ta/) and other (when the response was something other than /pa/, /ka/ or /ta/). Data were collected from hearing impaired individuals who were experts in CS (all of which had either cochlear implants or binaural hearing aids; N = 8), hearing-individuals who were experts in CS (N = 14) and hearing-individuals who were completely naïve of CS (N = 15). Results confirmed that, like hearing-people, deaf people can merge auditory and lip-reading information into a single unified percept. Without manual cues, McGurk stimuli induced the same percentage of fusion responses in both groups. Results also suggest that manual cues can modify the AV integration and that their impact differs between hearing and deaf people. Frontiers Media S.A. 2014-05-19 /pmc/articles/PMC4032946/ /pubmed/24904451 http://dx.doi.org/10.3389/fpsyg.2014.00416 Text en Copyright © 2014 Bayard, Colin and Leybaert. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Psychology Bayard, Clémence Colin, Cécile Leybaert, Jacqueline How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? |
title | How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? |
title_full | How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? |
title_fullStr | How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? |
title_full_unstemmed | How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? |
title_short | How is the McGurk effect modulated by Cued Speech in deaf and hearing adults? |
title_sort | how is the mcgurk effect modulated by cued speech in deaf and hearing adults? |
topic | Psychology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4032946/ https://www.ncbi.nlm.nih.gov/pubmed/24904451 http://dx.doi.org/10.3389/fpsyg.2014.00416 |
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