title: Non linear behavior of vocal fold vibration in an experimental model of asymmetric larynx: role of coupling between the two folds.
abstract: One of the main factors involved in the laryngeal dynamic's non-linearity is the coupling between the two vocal folds. Evaluation of the different coupling elements requires various investigations. The present work evaluate the non-linearity effects in clinical situations such as unilateral laryngeal paralysis using Lyapunov's coefficients. It also demonstrate the coupling effects on excised larynx made experimentally asymmetrical, using a specially designed device to measure vibrations from each vocal fold (opto-reflectometer).
authors.affiliation: CHU La Timone, Laboratoires d'Audio-Phonologie Clinique, Marseille, France.
authors.forename: M
authors.initials: M
authors.lastname: Ouaknine
authors.forename: A
authors.initials: A
authors.lastname: Giovanni
authors.forename: B
authors.initials: B
authors.lastname: Guelfucci
authors.forename: B
authors.initials: B
authors.lastname: Teston
authors.forename: J M
authors.initials: JM
authors.lastname: Triglia
mesh_terms: D000818:Animals; D007830:Larynx / Q000503:physiopathology*; D017711:Nonlinear Dynamics; D013552:Swine; D014732:Vibration; D014826:Vocal Cord Paralysis / Q000503:physiopathology*; D014827:Vocal Cords / Q000503:physiopathology*