Comparison of upper and lower lip muscle activity between stutterers and fluent speakers

Felício, Cláudia Maria de; Freitas, R.; Vitti, Mathias; Regalo, Simone Cecílio Hallak

doi:10.1016/j.ijporl.2007.04.008

Cited by 18 publications

(12 citation statements)

References 23 publications

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“…In contrast, there is little consensus among studies investigating whether PWS differ in the amplitude (Walsh et al, 2015;Van Lieshout et al, 2014;cf. Namasivayam & van Lieshout, 2008) and duration of movements (McClean & Tasko, 2004;Smith et al, 2010Smith et al, , 2012Tasko et al, 2007;Usler et al, 2017) or in the movement effort during speech production (Choo et al, 2010;De Andrade et al, 2008;de Felício et al, 2007;Walsh & Smith, 2013).…”

mentioning

confidence: 99%

Speech Movement Variability in People Who Stutter: A Vocal Tract Magnetic Resonance Imaging Study

Wiltshire

Chiew

Chesters

et al. 2021

J Speech Lang Hear Res

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Purpose People who stutter (PWS) have more unstable speech motor systems than people who are typically fluent (PWTF). Here, we used real-time magnetic resonance imaging (MRI) of the vocal tract to assess variability and duration of movements of different articulators in PWS and PWTF during fluent speech production. Method The vocal tracts of 28 adults with moderate to severe stuttering and 20 PWTF were scanned using MRI while repeating simple and complex pseudowords. Midsagittal images of the vocal tract from lips to larynx were reconstructed at 33.3 frames per second. For each participant, we measured the variability and duration of movements across multiple repetitions of the pseudowords in three selected articulators: the lips, tongue body, and velum. Results PWS showed significantly greater speech movement variability than PWTF during fluent repetitions of pseudowords. The group difference was most evident for measurements of lip aperture using these stimuli, as reported previously, but here, we report that movements of the tongue body and velum were also affected during the same utterances. Variability was not affected by phonological complexity. Speech movement variability was unrelated to stuttering severity within the PWS group. PWS also showed longer speech movement durations relative to PWTF for fluent repetitions of multisyllabic pseudowords, and this group difference was even more evident as complexity increased. Conclusions Using real-time MRI of the vocal tract, we found that PWS produced more variable movements than PWTF even during fluent productions of simple pseudowords. PWS also took longer to produce multisyllabic words relative to PWTF, particularly when words were more complex. This indicates general, trait-level differences in the control of the articulators between PWS and PWTF. Supplemental Material https://doi.org/10.23641/asha.14782092

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mentioning

confidence: 99%

Speech Movement Variability in People Who Stutter: A Vocal Tract Magnetic Resonance Imaging Study

Wiltshire

Chiew

Chesters

et al. 2021

J Speech Lang Hear Res

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“…In contrast, other research has illustrated how moments of stuttering are not typically characterized by increased levels of tension in laryngeal muscles when evaluated through electromyography (EMG) [17]. The same results have been found with muscle activity of the lower and upper lips [18]. Though EMG amplitude may be the same for moments of stuttering and moments of fluent speech, oscillations of muscle activity in some muscles may differ between moments of stuttering and moments of fluent speech, suggesting variability between the speech patterns of adults who stutter [19].…”

Section: Introductionmentioning

confidence: 73%

Speaker and Observer Perceptions of Physical Tension during Stuttering

Tichenor

Leslie

Shaiman

et al. 2017

Folia Phoniatr Logop

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Purpose: Speech-language pathologists routinely assess physical tension during evaluation of those who stutter. If speakers experience tension that is not visible to clinicians, then judgments of severity may be inaccurate. This study addressed this potential discrepancy by comparing judgments of tension by people who stutter and expert clinicians to determine if clinicians could accurately identify the speakers’ experience of physical tension. Method: Ten adults who stutter were audio-video recorded in two speaking samples. Two board-certified specialists in fluency evaluated the samples using the Stuttering Severity Instrument-4 and a checklist adapted for this study. Speakers rated their tension using the same forms, and then discussed their experiences in a qualitative interview so that themes related to physical tension could be identified. Results: The degree of tension reported by speakers was higher than that observed by specialists. Tension in parts of the body that were less visible to the observer (chest, abdomen, throat) was reported more by speakers than by specialists. The thematic analysis revealed that speakers’ experience of tension changes over time and that these changes may be related to speakers’ acceptance of stuttering. Conclusion: The lack of agreement between speaker and specialist perceptions of tension suggests that using self-reports is a necessary component for supporting the accurate diagnosis of tension in stuttering.

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“…In Brazil, there is already a considerable production of studies using the electromyography in the evaluation and monitoring of the therapy in stuttering patients. In 2007, a research was conducted 9 aiming to compare fluent and stuttering patients through the electromyographic activity of the muscles of the upper and lower lips. For that, the authors used two groups with ten participants each.…”

Section: Electromyographymentioning

confidence: 99%

O uso da eletroglotografia, eletromiografia, espectografia e ultrassom nos estudos de fala - revisão teórica

et al. 2015

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O emprego de novas tecnologias na avaliação e terapia de fala a partir de uma revisão de artigos publicados nos últimos 5 anos é o tema deste estudo, que tem por objetivo realizar uma revisão bibliográfica dos estudos nacionais e internacionais que utilizaram os recursos: eletroglotografia, espectrografia, ultrassonografia e eletromiografia na avaliação e terapia das alterações de fala. Existe um crescente interesse da inserção desses recursos nos estudos de fala, contudo, os trabalhos existentes que os correlacionam ainda são escassos.

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Comparison of upper and lower lip muscle activity between stutterers and fluent speakers

Cited by 18 publications

References 23 publications

Speech Movement Variability in People Who Stutter: A Vocal Tract Magnetic Resonance Imaging Study

Speech Movement Variability in People Who Stutter: A Vocal Tract Magnetic Resonance Imaging Study

Speaker and Observer Perceptions of Physical Tension during Stuttering

O uso da eletroglotografia, eletromiografia, espectografia e ultrassom nos estudos de fala - revisão teórica

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