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An exploratory model of speech intelligibility for healthy aging based on phonatory and articulatory measures.
Kuruvilla-Dugdale, Mili; Dietrich, Maria; McKinley, Jacob D; Deroche, Chelsea.
Afiliación
  • Kuruvilla-Dugdale M; Department of Speech, Language and Hearing Sciences, University of Missouri, Columbia, MO, United States. Electronic address: kuruvillam@missouri.edu.
  • Dietrich M; Department of Speech, Language and Hearing Sciences, University of Missouri, Columbia, MO, United States.
  • McKinley JD; Department of Rehabilitation Services, University of Kansas Health System, Kansas City, MO, United States.
  • Deroche C; Department of Health Management and Informatics, University of Missouri, Columbia, MO, United States.
J Commun Disord ; 87: 105995, 2020.
Article en En | MEDLINE | ID: mdl-32531515
PURPOSE: The aims of the current study were to determine age-related changes to the phonatory and articulatory subsystems and to investigate an exploratory model of intelligibility for healthy aging based on phonatory and articulatory measures. METHOD: Fifteen healthy, older adults (55-81 years) and 15 younger adults (20-35 years) participated in instrumental assessments of the phonatory (aerodynamic, acoustic) and articulatory (kinematic) subsystems. Speech intelligibility was determined by five listeners during multi-talker babble. RESULTS: Older adults displayed shorter maximum phonation time, greater airflow during sentence reading, and lower cepstral peak prominence (CPP) and CPP SD. Additionally, older adults had slower tongue movement speed than younger adults. Speech intelligibility was also significantly reduced in the older group. A generalized estimating equations model combining phonatory and articulatory measures showed that CPP SD, low/high (L/H) spectral ratio mean and SD, Cepstral Spectral Index of Dysphonia (CSID), and maximum tongue movement speed were significant contributors to intelligibility changes in older individuals. While L/H mean and SD and CSID displayed an inverse relationship with intelligibility, CPP SD and maximum tongue speed displayed a direct relationship with intelligibility. DISCUSSION: Aging affects the phonatory and articulatory subsystems with implications for speech intelligibility. Phonatory cepstral/spectral measures (except mean CPP) were associated with speech intelligibility changes, suggesting that changes in voice quality may contribute to reduced intelligibility in older adults. Pertaining to articulation, slower tongue movement speed likely contributed to reduced intelligibility in older individuals.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fonación / Inteligibilidad del Habla / Envejecimiento Saludable Límite: Adult / Aged / Aged80 / Humans / Middle aged Idioma: En Revista: J Commun Disord Año: 2020 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fonación / Inteligibilidad del Habla / Envejecimiento Saludable Límite: Adult / Aged / Aged80 / Humans / Middle aged Idioma: En Revista: J Commun Disord Año: 2020 Tipo del documento: Article Pais de publicación: Estados Unidos