Document Detail

Biomechanical modeling of the three-dimensional aspects of human vocal fold dynamics.
MedLine Citation:
PMID:  20136223     Owner:  NLM     Status:  MEDLINE    
Human voice originates from the three-dimensional (3D) oscillations of the vocal folds. In previous studies, biomechanical properties of vocal fold tissues have been predicted by optimizing the parameters of simple two-mass-models to fit its dynamics to the high-speed imaging data from the clinic. However, only lateral and longitudinal displacements of the vocal folds were considered. To extend previous studies, a 3D mass-spring, cover-model is developed, which predicts the 3D vibrations of the entire medial surface of the vocal fold. The model consists of five mass planes arranged in vertical direction. Each plane contains five longitudinal, mass-spring, coupled oscillators. Feasibility of the model is assessed using a large body of dynamical data previously obtained from excised human larynx experiments, in vivo canine larynx experiments, physical models, and numerical models. Typical model output was found to be similar to existing findings. The resulting model enables visualization of the 3D dynamics of the human vocal folds during phonation for both symmetric and asymmetric vibrations.
Anxiong Yang; Jörg Lohscheller; David A Berry; Stefan Becker; Ulrich Eysholdt; Daniel Voigt; Michael Döllinger
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Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  127     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-08     Completed Date:  2010-06-24     Revised Date:  2014-09-13    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1014-31     Citation Subset:  IM    
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MeSH Terms
Air Pressure
Biomechanical Phenomena
Computer Simulation
Databases, Factual
Feasibility Studies
Glottis / physiology
Larynx / physiology
Models, Biological*
Phonation / physiology
Vocal Cords / physiology*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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