Perceptual Classification of Motor Speech Disorders: The Role of Severity, Speech Task, and Listener's Expertise.
Purpose: The clinical diagnosis of motor speech disorders (MSDs) is mainly based on perceptual approaches. However, studies on perceptual classification of MSDs often indicate low classification accuracy. The aim of this study was to determine in a forced-choice dichotomous decision-making task (a)...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 65; no. 8; pp. 2727 - 2748 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Aug2022
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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=158620611&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 158620611 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: Aug2022 vid: 65 iid: 8 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 158620611 10.1044/2022_JSLHR-21-00519 ppf: 2727 ppct: 21 formats: fmt: @attributes: type: P size: 1.1MB tig: atl: Perceptual Classification of Motor Speech Disorders: The Role of Severity, Speech Task, and Listener's Expertise. aug: au: Pernon, Michaela Assal, Frédéric Kodrasi, Ina Laganaro, Marina affil: Neurology Department, Geneva University Hospitals, Switzerland Faculty of Medicine, University of Geneva, Switzerland Laboratoire de Phonétique et Phonologie, UMR 7018, CNRS-Université Sorbonne Nouvelle, Paris, France CRMR Wilson & Parkinson Unit, Neurology Department, Hôpital Fondation Adolphe de Rothschild, Paris, France Signal Processing for Communication Group, Idiap Research Institute, Martigny, Switzerland Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland su: Speech disorders Sensory perception Task performance Decision making Speech apraxia Dysarthria Speech evaluation Comparative studies Clinical competence sug: subj: Speech disorders Sensory perception Task performance Decision making Speech apraxia Dysarthria Speech evaluation Comparative studies Clinical competence ab: Purpose: The clinical diagnosis of motor speech disorders (MSDs) is mainly based on perceptual approaches. However, studies on perceptual classification of MSDs often indicate low classification accuracy. The aim of this study was to determine in a forced-choice dichotomous decision-making task (a) how accuracy of speech-language pathologists (SLPs) in perceptually classifying apraxia of speech (AoS) and dysarthria is impacted by speech task, severity of MSD, and listener's expertise and (b) which perceptual features they use to classify. Method: Speech samples from 29 neurotypical speakers, 14 with hypokinetic dysarthria associated with Parkinson's disease (HD), 10 with poststroke AoS, and six with mixed dysarthria associated with amyotrophic lateral sclerosis (MD-FlSp [combining flaccid and spastic dysarthria]), were classified by 20 expert SLPs and 20 student SLPs. Speech samples were elicited in spontaneous speech, text reading, oral diadochokinetic (DDK) tasks, and a sample concatenating text reading and DDK. For each recorded speech sample, SLPs answered three dichotomic questions following a diagnostic approach, (a) neurotypical versus pathological speaker, (b) AoS versus dysarthria, and (c) MD-FlSp versus HD, and a multiple-choice question on the features their decision was based on. Results: Overall classification accuracy was 72% with good interrater reliability, varying with SLP expertise, speech task, and MSD severity. Correct classification of speech samples was higher for speakers with dysarthria than for AoS and higher for HD than for MD-FlSp. Samples elicited with continuous speech reached the best classification rates. An average number of three perceptual features were used for correct classifications, and their type and combination differed between the three MSDs. Conclusions: The auditory-perceptual classification of MSDs in a diagnostic approach reaches substantial performance only in expert SLPs with continuous speech samples, albeit with lower accuracy for AoS. Specific training associated with objective classification tools seems necessary to improve recognition of neurotypical speech and distinction between AoS and dysarthria. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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