Classification of accurate and misarticulated /ɑr/ for ultrasound biofeedback using tongue part displacement trajectories.
Ultrasound biofeedback therapy (UBT), which incorporates real-time imaging of tongue articulation, has demonstrated generally positive speech remediation outcomes for individuals with residual speech sound disorder (RSSD). However, UBT requires high attentional demands and may therefore benefit from...
| Publicado en: | Clinical Linguistics & Phonetics Vol. 37; no. 2; pp. 196 - 223 |
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| Autores principales: | , , , , , , , , , |
| Formato: | diagnostic images equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=161545326&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 161545326 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02699206 B6X jtl: Clinical Linguistics & Phonetics issn: 02699206 maglogo: Y pubinfo: dt: 2023 vid: 37 iid: 2 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 161545326 155584433 161545326 161545326 10.1080/02699206.2022.2039777 161545326 ppf: 196 ppct: 27 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Classification of accurate and misarticulated /ɑr/ for ultrasound biofeedback using tongue part displacement trajectories. aug: au: Li, Sarah R. Dugan, Sarah Masterson, Jack Hudepohl, Hannah Annand, Colin Spencer, Caroline Seward, Renee Riley, Michael A. Boyce, Suzanne Mast, T. Douglas affil: Biomedical Engineering, University of Cincinnati, Cincinnati, Ohio, USA sug: subj: Articulation Disorders Therapy Tongue Ultrasonography Movement Evaluation Biofeedback Methods Speech Therapy Methods Treatment Outcomes Evaluation Predictive Value of Tests Speech Production Measurement Human Auditory Perception Child Comparative Studies Support Vector Machine Regression Funding Source Adolescence Ohio Male Female Image Processing, Computer Assisted Visual Analog Scaling Descriptive Statistics Factor Analysis Machine Learning Automation Child: 6-12 years Adolescent: 13-18 years Male Female ab: Ultrasound biofeedback therapy (UBT), which incorporates real-time imaging of tongue articulation, has demonstrated generally positive speech remediation outcomes for individuals with residual speech sound disorder (RSSD). However, UBT requires high attentional demands and may therefore benefit from a simplified display of articulation targets that are easily interpretable and can be compared to real-time articulation. Identifying such targets requires automatic quantification and analysis of movement features relevant to accurate speech production. Our image-analysis program TonguePART automatically quantifies tongue movement as tongue part displacement trajectories from midsagittal ultrasound videos of the tongue, with real-time capability. The present study uses such displacement trajectories to compare accurate and misarticulated American-English rhotic /ɑr/ productions from 40 children, with degree of accuracy determined by auditory perceptual ratings. To identify relevant features of accurate articulation, support vector machine (SVM) classifiers were trained and evaluated on several candidate data representations. Classification accuracy was up to 85%, indicating that quantification of tongue part displacement trajectories captured tongue articulation characteristics that distinguish accurate from misarticulated production of /ɑr/. Regression models for perceptual ratings were also compared. The simplest data representation that retained high predictive ability, demonstrated by high classification accuracy and strong correlation between observed and predicted ratings, was displacements at the midpoint of /r/ relative to /ɑ/ for the tongue dorsum and blade. This indicates that movements of the dorsum and blade are especially relevant to accurate production of /r/, suggesting that a predictive parameter and biofeedback target based on this data representation may be usable for simplified UBT. pubtype: Academic Journal doctype: diagnostic images equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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