How Does Prosodic Prominence Impact Articulatory Movement Parameters and Movement Variability in Adults Who Stutter?
Purpose: This study examined how focus-induced changes in degree of prosodic prominence impact articulatory movement parameters and movement variability in adults who stutter (AWS) and adults who do not stutter (AWNS). AWS were predicted to display greater across-trial variability in closing and ope...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 68; pp. 3602 - 3627 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
2025 Supplement
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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=ssf&AN=187102508&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 187102508 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: 2025 Supplement vid: 68 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 187102508 10.1044/2024_JSLHR-24-00358 ppf: 3602 ppct: 25 formats: fmt: @attributes: type: P size: 1.9MB tig: atl: How Does Prosodic Prominence Impact Articulatory Movement Parameters and Movement Variability in Adults Who Stutter? aug: au: Kopera, Hailey C. Grigos, Maria I. affil: Department of Communicative Sciences and Disorders, New York University, NY su: Motor ability Linguistics Semantics Adults Questionnaires Kinematics Stuttering Descriptive statistics Physiological aspects of speech Speech evaluation Motion capture (Human mechanics) sug: subj: Motor ability Linguistics Semantics Adults Questionnaires Kinematics Stuttering Descriptive statistics Physiological aspects of speech Speech evaluation Motion capture (Human mechanics) ab: Purpose: This study examined how focus-induced changes in degree of prosodic prominence impact articulatory movement parameters and movement variability in adults who stutter (AWS) and adults who do not stutter (AWNS). AWS were predicted to display greater across-trial variability in closing and opening duration, displacement, and velocity compared to AWNS as prosodic demands (i.e., addition of pitch accent, degree of prosodic strengthening) increased. Method: Sixteen AWS and 15 AWNS participated in this study. A question--answer paradigm was used to manipulate the prosodic structure of spoken sentences through changes in semantic focus, and articulatory movement data were collected via a motion capture system. Kinematic analyses included oral closing and opening duration, displacement, and peak velocity, as well as the variability of these measures across repeated productions. Results: AWS and AWNS demonstrated prosodic strengthening of closing and opening gestures, contributing to the differentiation of non-focused and focused words, as well as different focus types (e.g., broad vs. narrow/contrastive). AWS demonstrated greater variability in closing displacement and velocity for unaccented, non-focused forms compared to other focus types and compared to AWNS, which was not in line with predictions. Conclusions: This work demonstrates a complex relationship between degree of prosodic prominence and articulatory movement variability. Based on patterns observed in AWS, but not AWNS, it is plausible that processes involved in suppressing default nuclear accents could act as linguistic stressors on the speech motor systems of AWS. Further research is needed to advance our understanding of the role of prosody within a multifactorial view of stuttering. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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