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Visual Cues Contribute Differentially to Audiovisual Perception of Consonants and Vowels in Improving Recognition and Reducing Cognitive Demands in Listeners With Hearing Impairment Using Hearing Aids
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. Linköping University, The Swedish Institute for Disability Research.
Linköping University, Department of Behavioural Sciences and Learning, Psychology. Linköping University, Faculty of Arts and Sciences.
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. Linköping University, The Swedish Institute for Disability Research.
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. Linköping University, The Swedish Institute for Disability Research.
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2017 (English)In: Journal of Speech, Language and Hearing Research, ISSN 1092-4388, E-ISSN 1558-9102, Vol. 60, no 9, p. 2687-2703Article in journal (Refereed) Published
Abstract [en]

Purpose We sought to examine the contribution of visual cues in audiovisual identification of consonants and vowels—in terms of isolation points (the shortest time required for correct identification of a speech stimulus), accuracy, and cognitive demands—in listeners with hearing impairment using hearing aids.

Method The study comprised 199 participants with hearing impairment (mean age = 61.1 years) with bilateral, symmetrical, mild-to-severe sensorineural hearing loss. Gated Swedish consonants and vowels were presented aurally and audiovisually to participants. Linear amplification was adjusted for each participant to assure audibility. The reading span test was used to measure participants' working memory capacity.

Results Audiovisual presentation resulted in shortened isolation points and improved accuracy for consonants and vowels relative to auditory-only presentation. This benefit was more evident for consonants than vowels. In addition, correlations and subsequent analyses revealed that listeners with higher scores on the reading span test identified both consonants and vowels earlier in auditory-only presentation, but only vowels (not consonants) in audiovisual presentation.

Conclusion Consonants and vowels differed in terms of the benefits afforded from their associative visual cues, as indicated by the degree of audiovisual benefit and reduction in cognitive demands linked to the identification of consonants and vowels presented audiovisually.

Place, publisher, year, edition, pages
American Speech-Language-Hearing Association, 2017. Vol. 60, no 9, p. 2687-2703
National Category
Psychology (excluding Applied Psychology)
Identifiers
URN: urn:nbn:se:liu:diva-141845DOI: 10.1044/2016_JSLHR-H-16-0160ISI: 000411478200024PubMedID: 28651255Scopus ID: 2-s2.0-85029769609OAI: oai:DiVA.org:liu-141845DiVA, id: diva2:1147964
Note

Funding Agencies|Swedish Research Council; Swedish Research Council for Health, Working Life, and Welfare

Available from: 2017-10-09 Created: 2017-10-09 Last updated: 2017-10-17Bibliographically approved

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Moradi, ShahramLidestam, BjörnDanielsson, HenrikNg, Elaine Hoi NingRönnberg, Jerker
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