Journal article
The dynamics of length change in canine vocal folds
Journal of voice, Vol.11(3), pp.267-276
09/01/1997
DOI: 10.1016/S0892-1997(97)80004-5
PMID: 9297670
Abstract
The time courses of vocal fold elongation and contraction have beenmeasured as a function of intrinsic laryngeal muscle activity. The superior and recurrent laryngeal nerves of anesthetized canines were stimulated supramaximally (on-off in all combinations) while the vocal folds were surgically exposed and illuminated for conventional and higher speed (300 frames per second) video recording. Microsutures were placed on various points on the vocal folds to measure elongation and contraction. Vocal fold strain, defined as elongation divided by rest length, ranged from −17% to +45%. The typical time constant for exponential increase or decrease in strain was about 30 ms. This reflects primarily the intrinsic muscle activation times rather than a passive (inertial or viscoelastic) response of cricothyroid joint rotation or translation.
Details
- Title: Subtitle
- The dynamics of length change in canine vocal folds
- Creators
- Ingo R. Titze - University of IowaJack J. Jiang - Northwestern UniversityEmily Lin - Northwestern University
- Resource Type
- Journal article
- Publication Details
- Journal of voice, Vol.11(3), pp.267-276
- Publisher
- Mosby, Inc
- DOI
- 10.1016/S0892-1997(97)80004-5
- PMID
- 9297670
- ISSN
- 0892-1997
- eISSN
- 1873-4588
- Number of pages
- 10
- Language
- English
- Date published
- 09/01/1997
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719750102771
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