Correlation of orofacial speeds with voice acoustic measures in the fluent speech of persons who stutter

Experimental Brain Research
M D McClean, Stephen M Tasko

Abstract

Stuttering is often viewed as a problem in coordinating the movements of different muscle systems involved in speech production. From this perspective, it is logical that efforts be made to quantify and compare the strength of neural coupling between muscle systems in persons who stutter (PS) and those who do not stutter (NS). This problem was addressed by correlating the speeds of different orofacial structures with vowel fundamental frequency (F0) and intensity as subjects produced fluent repetitions of a simple nonsense phrase at habitual, high, and low intensity levels. It is assumed that resulting correlations indirectly reflect the strength of neural coupling between particular orofacial structures and the respiratory-laryngeal system. An electromagnetic system was employed to record movements of the upper lip, lower lip, tongue, and jaw in 43 NS and 39 PS. The acoustic speech signal was recorded and used to obtain measures of vowel F0 and intensity. For each subject, correlation measures were obtained relating peak orofacial speeds to F0 and intensity. Correlations were significantly reduced in PS compared to NS for the lower lip and tongue, although the magnitude of these group differences covaried with the correlation ...Continue Reading

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Citations

Aug 9, 2016·Journal of Fluency Disorders·Ali DehqanRonald C Scherer
Jun 13, 2006·Journal of Communication Disorders·Stephen M TaskoCharles M Runyan
Aug 31, 2019·BioMed Research International·Abdulaziz AlmudhiAhmad Alghadir
Jun 23, 2021·Journal of Speech, Language, and Hearing Research : JSLHR·Charlotte E E WiltshireKate E Watkins

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