Journal article
Detection of Articulatory Deficits in Parkinson's Disease: Can Systematic Manipulations of Phonetic Complexity Help?
Journal of speech, language, and hearing research, Vol.63(7), pp.2084-2098
07/01/2020
DOI: 10.1044/2020_JSLHR-19-00245
PMCID: 7838836
PMID: 32598198
Abstract
Purpose: This study sought to determine the feasibility of using phonetic complexity manipulations as a way to systematically assess articulatory deficits in talkers with progressive dysarthria due to Parkinson's disease (PD).
Method: Articulatory kinematics were recorded using three-dimensional electromagnetic articulography from 15 talkers with PD (58-84 years old) and 15 healthy controls (55-80 years old) while they produced target words embedded in a carrier phrase. Majority of the talkers with PD exhibited a relatively mild dysarthria. For stimuli selection, phonetic complexity was calculated for a variety of words using the framework proposed by Kent ( 1992), and six words representative of low, medium, and high phonetic complexity were selected as targets. Jaw, posterior tongue, and anterior tongue kinematic measures that were used to test for phonetic complexity effects included movement speed, cumulative path distance, movement range, movement duration, and spatiotemporal variability.
Results: Significantly smaller movements and slower movement speeds were evident in talkers with PD, predominantly for words with high phonetic complexity. The effect sizes of between-groups differences were larger for several jaw kinematic measures than those of the tongue.
Discussion and Conclusion: Findings suggest that systematic manipulations of phonetic complexity can support the detection of articulatory deficits in talkers with PD. Phonetic complexity should therefore be leveraged for the assessment of articulatory performance in talkers with progressive dysarthria. Future work will be directed toward linking speech kinematic and auditory-perceptual measures to determine the clinical significance of the current findings.
Details
- Title: Subtitle
- Detection of Articulatory Deficits in Parkinson's Disease: Can Systematic Manipulations of Phonetic Complexity Help?
- Creators
- Mili Kuruvilla-Dugdale - University of MissouriMary Salazar - University of MissouriAnqing Zhang - Children's NationalAntje S. Mefferd - Vanderbilt University Medical Center
- Resource Type
- Journal article
- Publication Details
- Journal of speech, language, and hearing research, Vol.63(7), pp.2084-2098
- Publisher
- Amer Speech-Language-Hearing Assoc
- DOI
- 10.1044/2020_JSLHR-19-00245
- PMID
- 32598198
- PMCID
- 7838836
- ISSN
- 1092-4388
- eISSN
- 1558-9102
- Number of pages
- 15
- Grant note
- R15DC016383; R03DC015075 / National Institutes of Health; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA UL1 TR002243 / Vanderbilt University VICTR Studio and ResearchMatch - National Center for Advancing Translational Sciences
- Language
- English
- Date published
- 07/01/2020
- Academic Unit
- Communication Sciences and Disorders
- Record Identifier
- 9984446264402771
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