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Age and velopharyngeal function during speech production

J D Hoit1, P J Watson, K E Hixon

  • 1Department of Speech and Hearing Sciences, University of Arizona, Tucson.

Journal of Speech and Hearing Research
|April 1, 1994
PubMed
Summary
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This study found no age-related changes in velopharyngeal function during speech, measured by nasal airflow. Sex differences were observed only for nasal consonant productions.

Area of Science:

  • Speech-Language Pathology
  • Gerontology
  • Physiological Acoustics

Background:

  • Velopharyngeal function is crucial for speech intelligibility.
  • Previous research suggested potential age-related decline in velopharyngeal function.

Purpose of the Study:

  • To investigate age-related differences in velopharyngeal function during speech.
  • To examine nasal airflow patterns across different adult age groups.

Main Methods:

  • Eighty adult subjects (40 women, 40 men) were divided into four age groups: 20-30, 40-50, 60-70, and 80+ years.
  • Nasal airflow was measured during speech production to assess velopharyngeal function.

Main Results:

  • No significant age-related differences in nasal airflow were observed.

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  • Sex-related differences in nasal airflow were identified exclusively during the production of nasal consonants.

    • Conclusions:

    • The findings do not support the hypothesis of age-related deterioration in velopharyngeal function.
    • Velopharyngeal function appears stable across adulthood, with minor sex-specific variations in nasal consonant production.