Validation of an Acoustic-Based Framework of Speech Motor Control: Assessing Criterion and Construct Validity Using Kinematic and Perceptual Measures.
Purpose: This study investigated the criterion (analytical and clinical) and construct (divergent) validity of a novel, acoustic-based framework composed of five key components of motor control: Coordination, Consistency, Speed, Precision, and Rate. Method: Acoustic and kinematic analyses were perfo...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 64; no. 12; pp. 4736 - 4754 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Dec2021
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=154172443&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 154172443 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Dec2021 vid: 64 iid: 12 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 154172443 10.1044/2021_JSLHR-21-00201 ppf: 4736 ppct: 18 formats: fmt: @attributes: type: P size: 1.2MB tig: atl: Validation of an Acoustic-Based Framework of Speech Motor Control: Assessing Criterion and Construct Validity Using Kinematic and Perceptual Measures. aug: au: Rowe, Hannah P. Stipancic, Kaila L. Lammert, Adam C. Green, Jordan R. affil: MGH Institute of Health Professions, Boston, MA Department of Communicative Disorders and Sciences, The State University of New York at Buffalo Department of Biomedical Engineering, Worcester Polytechnic Institute, MA su: Task performance Comparative grammar Sex distribution Motor ability Acoustics Verbal behavior testing Motor ability testing Test validity Human kinematics Amyotrophic lateral sclerosis Speech perception Statistics Computer software Physiological aspects of speech Research evaluation Research methodology Multitrait multimethod techniques Articulation disorders Inter-observer reliability T-test (Statistics) Research funding Descriptive statistics Motion capture (Human mechanics) Data analysis software Statistical correlation Data analysis Kinematics Phenotypes sug: subj: Task performance Comparative grammar Sex distribution Motor ability Computer and software stores Software publishers (except video game publishers) Computer and Computer Peripheral Equipment and Software Merchant Wholesalers Computer, computer peripheral and pre-packaged software merchant wholesalers Acoustics Verbal behavior testing Motor ability testing Test validity Human kinematics Amyotrophic lateral sclerosis Speech perception Statistics Computer software Physiological aspects of speech Research evaluation Research methodology Multitrait multimethod techniques Articulation disorders Inter-observer reliability T-test (Statistics) Research funding Descriptive statistics Motion capture (Human mechanics) Data analysis software Statistical correlation Data analysis Kinematics Phenotypes ab: Purpose: This study investigated the criterion (analytical and clinical) and construct (divergent) validity of a novel, acoustic-based framework composed of five key components of motor control: Coordination, Consistency, Speed, Precision, and Rate. Method: Acoustic and kinematic analyses were performed on audio recordings from 22 subjects with amyotrophic lateral sclerosis during a sequential motion rate task. Perceptual analyses were completed by two licensed speechlanguage pathologists, who rated each subject's speech on the five framework components and their overall severity. Analytical and clinical validity were assessed by comparing performance on the acoustic features to their kinematic correlates and to clinician ratings of the five components, respectively. Divergent validity of the acoustic-based framework was then assessed by comparing performance on each pair of acoustic features to determine whether the features represent distinct articulatory constructs. Bivariate correlations and partial correlations with severity as a covariate were conducted for each comparison. Results: Results revealed moderate-to-strong analytical validity for every acoustic feature, both with and without controlling for severity, and moderate-to-strong clinical validity for all acoustic features except Coordination, without controlling for severity. When severity was included as a covariate, the strong associations for Speed and Precision became weak. Divergent validity was supported by weak-to-moderate pairwise associations between all acoustic features except Speed (second-formant [F2] slope of consonant transition) and Precision (between-consonant variability in F2 slope). Conclusions: This study demonstrated that the acoustic-based framework has potential as an objective, valid, and clinically useful tool for profiling articulatory deficits in individuals with speech motor disorders. The findings also suggest that compared to clinician ratings, instrumental measures are more sensitive to subtle differences in articulatory function. With further research, this framework could provide more accurate and reliable characterizations of articulatory impairment, which may eventually increase clinical confidence in the diagnosis and treatment of patients with different articulatory phenotypes. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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