Systematic Studies of Modified Vocalization: The Effect of Speech Rate on Speech Production Measures during Metronome-Paced Speech in Persons Who Stutter

Autor/in	Davidow, Jason H.
Titel	Systematic Studies of Modified Vocalization: The Effect of Speech Rate on Speech Production Measures during Metronome-Paced Speech in Persons Who Stutter
Quelle	In: International Journal of Language & Communication Disorders, 49 (2014) 1, S.100-112 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1368-2822
DOI	10.1111/1460-6984.12050
Schlagwörter	Stuttering; Adults; Young Adults; Speech Skills; Speech Communication; Measures (Individuals); Predictor Variables; Comparative Analysis; Vowels; Articulation (Speech); Intervals; Phonology + Suchen Sie Ihr Suchwort? Stammer; Stottern; Young adult; Junger Erwachsener; Mündliche Leistung; Sprachfertigkeit; Messdaten; Prädiktor; Fonologie
Abstract	Background: Metronome-paced speech results in the elimination, or substantial reduction, of stuttering moments. The cause of fluency during this fluency-inducing condition is unknown. Several investigations have reported changes in speech pattern characteristics from a control condition to a metronome-paced speech condition, but failure to control speech rate between conditions limits our ability to determine if the changes were necessary for fluency. Aims: This study examined the effect of speech rate on several speech production variables during one-syllable-per-beat metronomic speech in order to determine changes that may be important for fluency during this fluency-inducing condition. Methods & Procedures: Thirteen persons who stutter (PWS), aged 18-62 years, completed a series of speaking tasks. Several speech production variables were compared between conditions produced at different metronome beat rates, and between a control condition and a metronome-paced speech condition produced at a rate equal to the control condition. Outcomes & Results: Vowel duration, voice onset time, pressure rise time and phonated intervals were significantly impacted by metronome beat rate. Voice onset time and the percentage of short (30-100 ms) phonated intervals significantly decreased from the control condition to the equivalent rate metronome-paced speech condition. Conclusions & Implications: A reduction in the percentage of short phonated intervals may be important for fluency during syllable-based metronome-paced speech for PWS. Future studies should continue examining the necessity of this reduction. In addition, speech rate must be controlled in future fluency-inducing condition studies, including neuroimaging investigations, in order for this research to make a substantial contribution to finding the fluency-inducing mechanism of fluency-inducing conditions. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10