The effect of speaking rate on velopharyngeal function in healthy speakers

Gauster, Andrea; Yunusova, Yana; Zajac, David J.

doi:10.3109/02699200903581042

Cited by 18 publications

(29 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, subjects were assigned to a particular dialect based upon self-report that they were native to their respective dialectical region. Although Gauster, Yunusova, and Zajac (2010) reported that aerodynamic and acoustic measures of velopharyngeal function were not affected by speaking rate variations in healthy subjects, studies by Dwyer, Robb, O'Beirne, and Gilbert (2009) and Goberman, Selby, and Gilbert (2001) have reported that measures of perceived nasality tend to decrease with increased speaking rate (and vice versa) in both hearing impaired and typical subjects, respectively. Future studies may employ the methods of Kavanagh et al (1994) in which consensus ratings on linguistically specified phonological criteria were used to confirm dialectical categorization.…”

Section: Discussionmentioning

confidence: 97%

Dialectical Effects on Nasalance: A Multicenter, Cross-Continental Study

Awan

Bressmann

Poburka

et al. 2015

J Speech Lang Hear Res

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 97%

Dialectical Effects on Nasalance: A Multicenter, Cross-Continental Study

Awan

Bressmann

Poburka

et al. 2015

J Speech Lang Hear Res

View full text Add to dashboard Cite

show abstract

“…The poor responsivity of the resonatory predictor may be, in part, because the slowing of speech allowed for oropharyngeal adjustments that confounded the effect of velopharyngeal inefficacy on the measures of nasal airflow and nasalance that comprised the resonatory predictor [57]. As disease progressed, however, oropharyngeal adjustments may become unavailable so that the confounding effect was removed, resulting in rapid declines in the resonatory measures regardless of the continuous slowing of speaking rate [45]. …”

Section: Discussionmentioning

confidence: 99%

“…To obtain all other measures, the PAS was used, which collected nasal airflow by fitting a nasal mask around the participant's nose and recorded intraoral air pressure by placing a disposable pressure-sensing tube in the participant's mouth. Based on the recording, a variety of aerodynamic measures that assess velopharyngeal integrity including peak oral air pressure and peak nasal airflow during /p/ and /m/ and the lag between /m/ and /p/ in “hamper” were measured by the PAS software [45, 46]. …”

Section: Methodsmentioning

confidence: 99%

Predicting Early Bulbar Decline in Amyotrophic Lateral Sclerosis: A Speech Subsystem Approach

Rong

Yunusova

Wang

et al. 2015

Behavioural Neurology

Self Cite

128

106

View full text Add to dashboard Cite

Purpose. To develop a predictive model of speech loss in persons with amyotrophic lateral sclerosis (ALS) based on measures of respiratory, phonatory, articulatory, and resonatory functions that were selected using a data-mining approach. Method. Physiologic speech subsystem (respiratory, phonatory, articulatory, and resonatory) functions were evaluated longitudinally in 66 individuals with ALS using multiple instrumentation approaches including acoustic, aerodynamic, nasometeric, and kinematic. The instrumental measures of the subsystem functions were subjected to a principal component analysis and linear mixed effects models to derive a set of comprehensive predictors of bulbar dysfunction. These subsystem predictors were subjected to a Kaplan-Meier analysis to estimate the time until speech loss. Results. For a majority of participants, speech subsystem decline was detectible prior to declines in speech intelligibility and speaking rate. Among all subsystems, the articulatory and phonatory predictors were most responsive to early bulbar deterioration; and the resonatory and respiratory predictors were as responsive to bulbar decline as was speaking rate. Conclusions. The articulatory and phonatory predictors are sensitive indicators of early bulbar decline due to ALS, which has implications for predicting disease onset and progression and clinical management of ALS.

show abstract

“…An average of these five productions is obtained to represent Ps during speech. f. Because Ps covaries with sound pressure level (SPL) 4,5 , the SPL is also collected for each syllable. It is used subsequently as a covariate during analyses.…”

Section: Respiratory Subsystem/ Breathing For Speechmentioning

confidence: 99%

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis (ALS)

Yunusova¹,

Green²,

Wang³

et al. 2011

JoVE

Self Cite

View full text Add to dashboard Cite

Improved methods for assessing bulbar impairment are necessary for expediting diagnosis of bulbar dysfunction in ALS, for predicting disease progression across speech subsystems, and for addressing the critical need for sensitive outcome measures for ongoing experimental treatment trials. To address this need, we are obtaining longitudinal profiles of bulbar impairment in 100 individuals based on a comprehensive instrumentation-based assessment that yield objective measures. Using instrumental approaches to quantify speech-related behaviors is very important in a field that has primarily relied on subjective, auditory-perceptual forms of speech assessment 1 . Our assessment protocol measures performance across all of the speech subsystems, which include respiratory, phonatory (laryngeal), resonatory (velopharyngeal), and articulatory. The articulatory subsystem is divided into the facial components (jaw and lip), and the tongue. Prior research has suggested that each speech subsystem responds differently to neurological diseases such as ALS. The current protocol is designed to test the performance of each speech subsystem as independently from other subsystems as possible. The speech subsystems are evaluated in the context of more global changes to speech performance. These speech system level variables include speaking rate and intelligibility of speech.The protocol requires specialized instrumentation, and commercial and custom software. The respiratory, phonatory, and resonatory subsystems are evaluated using pressure-flow (aerodynamic) and acoustic methods. The articulatory subsystem is assessed using 3D motion tracking techniques. The objective measures that are used to quantify bulbar impairment have been well established in the speech literature and show sensitivity to changes in bulbar function with disease progression. The result of the assessment is a comprehensive, across-subsystem performance profile for each participant. The profile, when compared to the same measures obtained from healthy controls, is used for diagnostic purposes. Currently, we are testing the sensitivity and specificity of these measures for diagnosis of ALS and for predicting the rate of disease progression. In the long term, the more refined endophenotype of bulbar ALS derived from this work is expected to strengthen future efforts to identify the genetic loci of ALS and improve diagnostic and treatment specificity of the disease as a whole. The objective assessment that is demonstrated in this video may be used to assess a broad range of speech motor impairments, including those related to stroke, traumatic brain injury, multiple sclerosis, and Parkinson disease.

show abstract

The effect of speaking rate on velopharyngeal function in healthy speakers

Cited by 18 publications

References 53 publications

Dialectical Effects on Nasalance: A Multicenter, Cross-Continental Study

Dialectical Effects on Nasalance: A Multicenter, Cross-Continental Study

Predicting Early Bulbar Decline in Amyotrophic Lateral Sclerosis: A Speech Subsystem Approach

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis (ALS)

Contact Info

Product

Resources

About