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Clin Linguist Phon. 2014 Jun;28(6):396-412. doi: 10.3109/02699206.2013.874040. Epub 2014 Jan 21.

Changes in voice onset time and motor speech skills in children following motor speech therapy: Evidence from /pa/ productions.

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1
Program in Neurosciences and Mental Health, Sick Kids Research Institute , Toronto, Ontario , Canada .

Abstract

This study evaluated changes in motor speech control and inter-gestural coordination for children with speech sound disorders (SSD) subsequent to Prompts for Restructuring Oral and Muscular Phonetic Targets (PROMPT) intervention. We measured the distribution patterns of voice onset time (VOT) for a voiceless stop (/p/) to examine the changes in inter-gestural coordination. Two standardized tests were used (Verbal Motor Production Assessment for Children (VMPAC), GFTA-2) to assess the changes in motor speech skills and articulation. Data showed positive changes in patterns of VOT with a lower pattern of variability. All children showed significantly higher scores for VMPAC, but only some children showed higher scores for GFTA-2. Results suggest that the proprioceptive feedback provided through PROMPT had a positive influence on speech motor control and inter-gestural coordination in voicing behavior. This set of VOT data for children with SSD adds to our understanding of the speech characteristics underlying speech motor control. Directions for future studies are discussed.

PMID:
24446799
PMCID:
PMC4885741
DOI:
10.3109/02699206.2013.874040
[Indexed for MEDLINE]
Free PMC Article
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