Articulatory-to-Acoustic Relations in Talkers With Dysarthria: A First Analysis

Journal of Speech, Language, and Hearing Research : JSLHR
Antje Mefferd

Abstract

The primary purpose of this study was to determine the strength of interspeaker and intraspeaker articulatory-to-acoustic relations of vowel contrast produced by talkers with dysarthria and controls. Six talkers with amyotrophic lateral sclerosis (ALS), six talkers with Parkinson's disease (PD), and 12 controls repeated a sentence at typical, slow, and fast rates. Tongue displacements and acoustic vowel distances were measured to determine articulatory and acoustic vowel contrasts. Interspeaker articulatory-to-acoustic relations were strong for talkers with PD and controls but weak for talkers with ALS and controls. Further, predominantly moderate and strong intraspeaker articulatory-to-acoustic relations were found in response to rate modulations; however, correlation coefficients were significantly lower in talkers with ALS than in controls. The findings on interspeaker articulatory-to-acoustic relations suggested that the degree of tongue displacement can be accurately inferred from the degree of acoustic vowel contrast in talkers with PD but not in talkers with ALS. Findings on intraspeaker articulatory-to-acoustic relations generally supported the longstanding notion that speaking rate-induced changes in tongue displacemen...Continue Reading

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Citations

Feb 2, 2016·The Journal of the Acoustical Society of America·Jimin LeeGary Weismer
Jul 3, 2016·The Journal of the Acoustical Society of America·Slim Ouni, Sara Dahmani
Jun 28, 2017·Journal of Speech, Language, and Hearing Research : JSLHR·Ignatius S B NipHannah Richardson
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Jul 16, 2019·Journal of Speech, Language, and Hearing Research : JSLHR·Antje S Mefferd, Mary S Dietrich
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Aug 11, 2020·Journal of Speech, Language, and Hearing Research : JSLHR·Jimin LeeYong Jung
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Jul 1, 2020·Journal of Speech, Language, and Hearing Research : JSLHR·Mili Kuruvilla-DugdaleAntje S Mefferd
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May 14, 2021·Journal of Speech, Language, and Hearing Research : JSLHR·Daniel KimAntje Mefferd
May 29, 2021·American Journal of Speech-language Pathology·Frits van BrenkKris Tjaden

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