Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Changes in normal speech after fatiguing the tongue.

N P Solomon1

  • 1Department of Communication Disorders, University of Minnesota, Minneapolis 55455, USA. Nancy.P.Solomon-1@tc.umn.edu

Journal of Speech, Language, and Hearing Research : JSLHR
|February 24, 2001
PubMed
Summary

Tongue fatigue impairs speech precision and alters acoustic properties in healthy individuals. These effects on speech articulation suggest disrupted tongue control after strenuous exercise.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Respiratory and laryngeal contributions to maximum phonation duration.

Journal of voice : official journal of the Voice Foundation·2000
Same author

Effects of a vocally fatiguing task and systemic hydration on phonation threshold pressure.

Journal of voice : official journal of the Voice Foundation·2000
Same author

Strength, endurance, and stability of the tongue and hand in Parkinson disease.

Journal of speech, language, and hearing research : JSLHR·2000
Same author

Midbrain regions for eliciting vocalization by electrical stimulation in anesthetized dogs.

The Annals of otology, rhinology, and laryngology·1998
Same author

Comparison of concentric needle versus hooked-wire electrodes in the canine larynx.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery·1998
Same author

Sense of effort and the effects of fatigue in the tongue and hand.

Journal of speech and hearing research·1996

Area of Science:

  • Speech motor control
  • Neurology
  • Acoustic phonetics

Background:

  • Tongue fatigue's impact on speech is poorly understood in healthy individuals.
  • Previous assumptions linked fatigue to neuromotor speech disorders.

Purpose of the Study:

  • To experimentally investigate the effects of induced tongue fatigue on speech production in neurologically normal adults.
  • To analyze perceptual and acoustic changes in speech following sustained maximal voluntary tongue contractions.

Main Methods:

  • Induced tongue fatigue through repeated maximal voluntary contractions until 50% strength loss.
  • Assessed speech changes perceptually and acoustically, focusing on lingual-palatal consonants.
  • Analyzed spectral moments, stop-closure duration, voice onset time, and formant frequencies.

Main Results:

  • Statistically significant decline in speech precision post-fatigue, with incomplete recovery.
  • Acoustic analysis revealed significant changes in spectral moments, contrary to predictions.
  • Observed tendencies for reduced stop-closure duration and altered voice onset time for /t/.

Conclusions:

  • Induced tongue fatigue negatively impacts speech precision and articulation in healthy adults.
  • Prolonged strenuous tongue exercise disrupts tongue positioning and transitions for consonants.
  • Findings highlight the role of tongue motor control in speech integrity.

Related Experiment Videos