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Phonological performance in gerontological speech

B J Benjamin

    Journal of Psycholinguistic Research
    |March 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Aging affects speech production. Older adults exhibit longer vowels and silent intervals, with shorter voice onset time (VOT) compared to younger speakers, indicating age-related changes in articulatory rate.

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    Area of Science:

    • Speech Science
    • Gerontology
    • Linguistics

    Background:

    • Aging leads to physiological and anatomical changes impacting speech production.
    • Understanding age-related differences in phonatory performance is crucial for speech science and clinical applications.

    Purpose of the Study:

    • To investigate age-related differences in the articulatory rate of speech production.
    • To compare phonatory performance in terms of vowel duration, stop consonant silent intervals, and voice onset time (VOT) between young and older adults.

    Main Methods:

    • Spectrographic analysis was employed to measure speech parameters.
    • Two groups were studied: 20 young adults (21-32 years) and 20 older adults (68-82 years).
    • Key acoustic measures included vowel duration, silent interval duration of stop consonants, and VOT.

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    Main Results:

    • Older adults demonstrated significantly longer vowel durations compared to young adults.
    • The silent intervals of stop consonants were significantly longer in older speakers.
    • Older adults exhibited significantly shorter voice onset time (VOT) values than their younger counterparts.

    Conclusions:

    • Age-related physiological changes significantly alter speech production, specifically affecting articulatory rate.
    • Quantifiable differences in vowel and consonant timing, as well as VOT, distinguish older adult speech.
    • These findings contribute to the understanding of speech changes associated with aging.