Auditory-visual augmentation of Thai lexical tone perception in the elderly

Benjawan Kasisopa, Sudaporn Luksaneeyanawin, Suparak Techacharoenrungrueang, Denis Burnham

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    ![CDATA[This study investigated the effects of aging, auditory and auditory-visual perception of lexical tone of native Thai listeners. Elderly and younger Adults’ discrimination of the 5 Thai tones was investigated in audio-visual (AV), audio-only (AO), and visual-only (VO) conditions at two inter-stimulus intervals (ISIs) [500 and 1500 ms] in clear and noisy conditions. Generally, the Elderly performed more poorly than the Adults, but in both groups there was similar ranking of the relative discriminability of tone contrasts. Notably, in noise there was better tone discrimination in AV than in AO, and this was equally the case for young Adults and the Elderly. This shows that the elderly can and do use visual speech information to augment auditory perception of tone. The Elderly also benefitted more from the 1500 ms ISI suggesting that their tone perception is better when a more phonological (rather than acoustic) mode of processing is available.]]
    Original languageEnglish
    Title of host publicationProceedings of the 18th International Congress of Phonetic Sciences (ICPhS 2015), 10-14 August 2015, Glasgow, Scotland, UK
    PublisherUniversity of Glasgow
    Number of pages5
    ISBN (Print)9780852619414
    Publication statusPublished - 2015
    EventInternational Congress of Phonetic Sciences -
    Duration: 10 Aug 2015 → …

    Conference

    ConferenceInternational Congress of Phonetic Sciences
    Period10/08/15 → …

    Keywords

    • speech perception
    • tone (phonetics)
    • auditory-visual speech perception
    • older people
    • noise
    • Thai language

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