Analysing spectral changes over time to identify articulatory impairments in dysarthria
| Autor: | Nathalie Lévêque, Anneke Slis, Frédéric Assal, Cécile Fougeron, Leonardo Lancia, Michaela Pernon |
|---|---|
| Přispěvatelé: | LPP - Laboratoire de Phonétique et Phonologie - UMR 7018 (LPP), Université Sorbonne Nouvelle - Paris 3-Centre National de la Recherche Scientifique (CNRS), Geneva University Hospital (HUG), Swiss National Science Foundation, Sinergia program (CRSII5_173711, 10.2017-9.2020) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Acoustics and Ultrasonics Repetitive Sequences Audiology behavioral disciplines and activities Speech Acoustics 030507 speech-language pathology & audiology 03 medical and health sciences Dysarthria 0302 clinical medicine Speech Production Measurement Arts and Humanities (miscellaneous) medicine Humans Amyotrophic lateral sclerosis [SHS.LANGUE]Humanities and Social Sciences/Linguistics Speech Intelligibility [SCCO.LING]Cognitive science/Linguistics medicine.disease ddc:616.8 Time course Speech Perception Mel-frequency cepstrum medicine.symptom Speech motor 0305 other medical science Psychology 030217 neurology & neurosurgery psychological phenomena and processes |
| Zdroj: | Journal of the Acoustical Society of America Journal of the Acoustical Society of America, Acoustical Society of America, 2021, 149 (2), pp.758-769. ⟨10.1121/10.0003332⟩ Journal of the Acoustical Society of America, Vol. 149, No 2 (2021) pp. 758-769 |
| ISSN: | 0001-4966 1520-8524 |
| DOI: | 10.1121/10.0003332⟩ |
| Popis: | International audience; Identifying characteristics of articulatory impairment in speech motor disorders is complicated due to the timeconsuming nature of kinematic measures. The goal is to explore whether analysing the acoustic signal in terms of total squared changes of Mel-Frequency Cepstral Coefficients (TSC_MFCC) and its pattern over time provides sufficient spectral information to distinguish mild and moderate dysarthric French speakers with Amyotrophic Lateral Sclerosis (ALS) and Parkinson's Disease (PD) from each other and from healthy speakers. Participants produced the vowel-glide sequences /ajajaj/, /ujujuj/, and /wiwiwi/. From the time course of TSC_MFCCs, event-related and global measures were extracted to capture the degree of acoustic change and its variability. In addition, durational measures were obtained. For both mild and moderately impaired PD and ALS speakers, the degree of acoustic change and its variability, averaged over the complete contour, separated PD and ALS speakers from each other and from healthy speakers, especially when producing the sequences /ujujuj/ and /wiwiwi/. Durational measures separated the moderate ALS from healthy and moderate PD speakers. Using the approach on repetitive sequences targeting the lingual and labial articulators to characterize articulatory impairment in speech motor disorders is promising. Findings are discussed against prior findings of articulatory impairment in the populations studied. |
| Databáze: | OpenAIRE |
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