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

Author:

Mefferd Antje1

Affiliation:

1. Wichita State University, KS

Abstract

Purpose 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. Methods 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. Results 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. Conclusions 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 displacement evoke similar changes in acoustic vowel contrast. Differential effects of the pathophysiology on inter- and intraspeaker articulatory-to-acoustic relations are discussed.

Publisher

American Speech Language Hearing Association

Subject

Speech and Hearing,Linguistics and Language,Language and Linguistics

Cited by 36 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Acoustic and Kinematic Predictors of Intelligibility and Articulatory Precision in Parkinson's Disease;Journal of Speech, Language, and Hearing Research;2024-09-11

2. Acoustic Effects of Speaker Sex, Speech Sample, and Mandarin Tone on Vowel Production of Poststroke Spastic Dysarthria;Folia Phoniatrica et Logopaedica;2024-03-28

3. Instrumental Analysis of Articulation;The Handbook of Clinical Linguistics, Second Edition;2024-01-08

4. Sex Differences in the Speech of Persons With and Without Parkinson's Disease;American Journal of Speech-Language Pathology;2024-01-03

5. Dysarthria;Reference Module in Neuroscience and Biobehavioral Psychology;2024

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