Cargando…

Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands

Speech recognition in complex environments involves focusing on the most relevant speech signal while ignoring distractions. Difficulties can arise due to the incoming signal’s characteristics (e.g., accented pronunciation, background noise, distortion) or the listener’s characteristics (e.g., heari...

Descripción completa

Detalles Bibliográficos
Autores principales: Tinnemore, Anna R., Gordon-Salant, Sandra, Goupell, Matthew J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7575283/
https://www.ncbi.nlm.nih.gov/pubmed/33054620
http://dx.doi.org/10.1177/2331216520960601
_version_ 1783597779518488576
author Tinnemore, Anna R.
Gordon-Salant, Sandra
Goupell, Matthew J.
author_facet Tinnemore, Anna R.
Gordon-Salant, Sandra
Goupell, Matthew J.
author_sort Tinnemore, Anna R.
collection PubMed
description Speech recognition in complex environments involves focusing on the most relevant speech signal while ignoring distractions. Difficulties can arise due to the incoming signal’s characteristics (e.g., accented pronunciation, background noise, distortion) or the listener’s characteristics (e.g., hearing loss, advancing age, cognitive abilities). Listeners who use cochlear implants (CIs) must overcome these difficulties while listening to an impoverished version of the signals available to listeners with normal hearing (NH). In the real world, listeners often attempt tasks concurrent with, but unrelated to, speech recognition. This study sought to reveal the effects of visual distraction and performing a simultaneous visual task on audiovisual speech recognition. Two groups, those with CIs and those with NH listening to vocoded speech, were presented videos of unaccented and accented talkers with and without visual distractions, and with a secondary task. It was hypothesized that, compared with those with NH, listeners with CIs would be less influenced by visual distraction or a secondary visual task because their prolonged reliance on visual cues to aid auditory perception improves the ability to suppress irrelevant information. Results showed that visual distractions alone did not significantly decrease speech recognition performance for either group, but adding a secondary task did. Speech recognition was significantly poorer for accented compared with unaccented speech, and this difference was greater for CI listeners. These results suggest that speech recognition performance is likely more dependent on incoming signal characteristics than a difference in adaptive strategies for managing distractions between those who listen with and without a CI.
format Online
Article
Text
id pubmed-7575283
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher SAGE Publications
record_format MEDLINE/PubMed
spelling pubmed-75752832020-10-27 Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands Tinnemore, Anna R. Gordon-Salant, Sandra Goupell, Matthew J. Trends Hear Original Article Speech recognition in complex environments involves focusing on the most relevant speech signal while ignoring distractions. Difficulties can arise due to the incoming signal’s characteristics (e.g., accented pronunciation, background noise, distortion) or the listener’s characteristics (e.g., hearing loss, advancing age, cognitive abilities). Listeners who use cochlear implants (CIs) must overcome these difficulties while listening to an impoverished version of the signals available to listeners with normal hearing (NH). In the real world, listeners often attempt tasks concurrent with, but unrelated to, speech recognition. This study sought to reveal the effects of visual distraction and performing a simultaneous visual task on audiovisual speech recognition. Two groups, those with CIs and those with NH listening to vocoded speech, were presented videos of unaccented and accented talkers with and without visual distractions, and with a secondary task. It was hypothesized that, compared with those with NH, listeners with CIs would be less influenced by visual distraction or a secondary visual task because their prolonged reliance on visual cues to aid auditory perception improves the ability to suppress irrelevant information. Results showed that visual distractions alone did not significantly decrease speech recognition performance for either group, but adding a secondary task did. Speech recognition was significantly poorer for accented compared with unaccented speech, and this difference was greater for CI listeners. These results suggest that speech recognition performance is likely more dependent on incoming signal characteristics than a difference in adaptive strategies for managing distractions between those who listen with and without a CI. SAGE Publications 2020-10-15 /pmc/articles/PMC7575283/ /pubmed/33054620 http://dx.doi.org/10.1177/2331216520960601 Text en © The Author(s) 2020 https://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Original Article
Tinnemore, Anna R.
Gordon-Salant, Sandra
Goupell, Matthew J.
Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands
title Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands
title_full Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands
title_fullStr Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands
title_full_unstemmed Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands
title_short Audiovisual Speech Recognition With a Cochlear Implant and Increased Perceptual and Cognitive Demands
title_sort audiovisual speech recognition with a cochlear implant and increased perceptual and cognitive demands
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7575283/
https://www.ncbi.nlm.nih.gov/pubmed/33054620
http://dx.doi.org/10.1177/2331216520960601
work_keys_str_mv AT tinnemoreannar audiovisualspeechrecognitionwithacochlearimplantandincreasedperceptualandcognitivedemands
AT gordonsalantsandra audiovisualspeechrecognitionwithacochlearimplantandincreasedperceptualandcognitivedemands
AT goupellmatthewj audiovisualspeechrecognitionwithacochlearimplantandincreasedperceptualandcognitivedemands