Instrumental Analysis of Articulation

Kim, Yunjung; Kent, Raymond D.; Thompson, Austin

doi:10.1002/9781119875949.ch35

Cited by 1 publication

(1 citation statement)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The impact of dysarthria can be conceptualized using a speech subsystem framework, which includes respiratory, phonatory, articulatory, and resonatory subsystems. While all these speech subsystems play an essential role in speech production, a substantial portion of the dysarthria literature has focused on directly and indirectly explaining articulatory deficits of dysarthria (Kim et al, 2024). Research focusing on the articulation deficits of dysarthria is warranted by evidence that the articulatory domain may be the strongest predictor of intelligibility among the various speech subsystems (De Bodt et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

A multidimensional examination of vowel-related articulatory deficits in Parkinson’s disease

Thompson,

Kim

2024

Preprint

View full text Add to dashboard Cite

Purpose: This study aimed to investigate the perceptual, acoustic, and kinematic differences between speakers with and without dysarthria due to Parkinson’s disease (PD) across conversational, less clear, and more clear clarity conditions.Methods: Forty participants, including 22 with PD and 18 controls, read three phrases aloud using conversational, less clear, and more clear speaking conditions. Acoustic and kinematic measures were obtained from the diphthong /aɪ/ and selected vowels in the sentences. A total of 368 listeners from crowdsourcing provided ratings for intelligibility and articulatory precision. Linear mixed-effects models were employed to examine (1) baseline conversational speaker group differences for perceptual, acoustic, and kinematic measures, and (2) clarity-related changes across the selected measures.Results: In the baseline conversational condition, speakers with PD were perceived as less intelligible and precise. However, none of the acoustic or kinematic measures differed between the speakers with and without PD. When asked to modify clarity, both speaker groups successfully modified various acoustic and kinematic measures, resulting in perceptual changes in intelligibility and articulatory precision. However, speakers with PD showed a reduced magnitude of change compared to HC speakers.Conclusions: The findings generally support the efficacy of clear speech as a behavioral treatment cue. However, the findings also highlight a large variability in strategies employed by speakers to modify their speech clarity.

show abstract

Section: Introductionmentioning

confidence: 99%