The Effects of Masseter Tendon Vibration on Nonspeech Oral Movements and Vowel Gestures

Torrey Mark John Loucks, Luc F. De Nil

Research output: Contribution to journalArticlepeer-review

Abstract

The role of proprioception in speech and oral motor control was investigated by applying tendon vibration to the masseter during vowel production and nonspeech oral movements. Measures were made of peak jaw-opening amplitude, jaw-opening velocity, and movement time in both vibration and nonvibration conditions. Generally, the tendon vibration caused a consistent and marked reduction in the amplitude and velocity of jaw-opening movements for each subject in both tasks. Movement time remained consistent across the vibration conditions for both tasks. These results indicate that masseter tendon vibration causes significant changes in jaw kinematics during simple speech gestures and nonspeech movements. These findings are consistent with the documented effects of tendon vibration on limb movements. The study demonstrates that tendon vibration is a potent tool for investigating proprioception in speech and oral motor control.

Original languageEnglish (US)
Pages (from-to)306-316
Number of pages11
JournalJournal of Speech, Language, and Hearing Research
Volume44
Issue number2
DOIs
StatePublished - Apr 2001

Keywords

  • Masseter
  • Muscle spindles
  • Proprioception
  • Speech production
  • Tendon vibration

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

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