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The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults

Previous studies have found that perception in older people benefits from multisensory over unisensory information. As normal speech recognition is affected by both the auditory input and the visual lip movements of the speaker, we investigated the efficiency of audio and visual integration in an ol...

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Autores principales: Maguinness, Corrina, Setti, Annalisa, Burke, Kate E., Kenny, Rose Anne, Newell, Fiona N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Research Foundation 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244611/
https://www.ncbi.nlm.nih.gov/pubmed/22207848
http://dx.doi.org/10.3389/fnagi.2011.00019
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author Maguinness, Corrina
Setti, Annalisa
Burke, Kate E.
Kenny, Rose Anne
Newell, Fiona N.
author_facet Maguinness, Corrina
Setti, Annalisa
Burke, Kate E.
Kenny, Rose Anne
Newell, Fiona N.
author_sort Maguinness, Corrina
collection PubMed
description Previous studies have found that perception in older people benefits from multisensory over unisensory information. As normal speech recognition is affected by both the auditory input and the visual lip movements of the speaker, we investigated the efficiency of audio and visual integration in an older population by manipulating the relative reliability of the auditory and visual information in speech. We also investigated the role of the semantic context of the sentence to assess whether audio–visual integration is affected by top-down semantic processing. We presented participants with audio–visual sentences in which the visual component was either blurred or not blurred. We found that there was a greater cost in recall performance for semantically meaningless speech in the audio–visual ‘blur’ compared to audio–visual ‘no blur’ condition and this effect was specific to the older group. Our findings have implications for understanding how aging affects efficient multisensory integration for the perception of speech and suggests that multisensory inputs may benefit speech perception in older adults when the semantic content of the speech is unpredictable.
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spelling pubmed-32446112011-12-29 The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults Maguinness, Corrina Setti, Annalisa Burke, Kate E. Kenny, Rose Anne Newell, Fiona N. Front Aging Neurosci Neuroscience Previous studies have found that perception in older people benefits from multisensory over unisensory information. As normal speech recognition is affected by both the auditory input and the visual lip movements of the speaker, we investigated the efficiency of audio and visual integration in an older population by manipulating the relative reliability of the auditory and visual information in speech. We also investigated the role of the semantic context of the sentence to assess whether audio–visual integration is affected by top-down semantic processing. We presented participants with audio–visual sentences in which the visual component was either blurred or not blurred. We found that there was a greater cost in recall performance for semantically meaningless speech in the audio–visual ‘blur’ compared to audio–visual ‘no blur’ condition and this effect was specific to the older group. Our findings have implications for understanding how aging affects efficient multisensory integration for the perception of speech and suggests that multisensory inputs may benefit speech perception in older adults when the semantic content of the speech is unpredictable. Frontiers Research Foundation 2011-12-22 /pmc/articles/PMC3244611/ /pubmed/22207848 http://dx.doi.org/10.3389/fnagi.2011.00019 Text en Copyright © 2011 Maguinness, Setti, Burke, Kenny and Newell. http://www.frontiersin.org/licenseagreementThis is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.
spellingShingle Neuroscience
Maguinness, Corrina
Setti, Annalisa
Burke, Kate E.
Kenny, Rose Anne
Newell, Fiona N.
The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults
title The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults
title_full The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults
title_fullStr The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults
title_full_unstemmed The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults
title_short The Effect of Combined Sensory and Semantic Components on Audio–Visual Speech Perception in Older Adults
title_sort effect of combined sensory and semantic components on audio–visual speech perception in older adults
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244611/
https://www.ncbi.nlm.nih.gov/pubmed/22207848
http://dx.doi.org/10.3389/fnagi.2011.00019
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