Artículo
Triangular body-cover model of the vocal folds with coordinated activation of the five intrinsic laryngeal muscles
Alzamendi, Gabriel Alejandro
; Peterson, Sean D.; Erath, Byron D.; Hillman, Robert E.; Zañartu, Matías
Fecha de publicación:
01/2022
Editorial:
Journal of Animal Ecology
Revista:
Journal of the Acoustical Society of America
ISSN:
0001-4966
e-ISSN:
1520-8524
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Poor laryngeal muscle coordination that results in abnormal glottal posturing is believed to be a primary etiologic factor in common voice disorders such as non-phonotraumatic vocal hyperfunction. Abnormal activity of antagonistic laryngeal muscles is hypothesized to play a key role in the alteration of normal vocal fold biomechanics that results in the dysphonia associated with such disorders. Current low-order models of the vocal folds are unsatisfactory to test this hypothesis since they do not capture the co-contraction of antagonist laryngeal muscle pairs. To address this limitation, a self-sustained triangular body-cover model with full intrinsic muscle control is introduced. The proposed scheme shows good agreement with prior studies using finite element models, excised larynges, and clinical studies in sustained and time-varying vocal gestures. Simulations of vocal fold posturing obtained with distinct antagonistic muscle activation yield clear differences in kinematic, aerodynamic, and acoustic measures. The proposed tool is deemed sufficiently accurate and flexible for future comprehensive investigations of non-phonotraumatic vocal hyperfunction and other laryngeal motor control disorders.
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Articulos (IBB)
Articulos de INSTITUTO DE INVESTIGACION Y DESARROLLO EN BIOINGENIERIA Y BIOINFORMATICA
Articulos de INSTITUTO DE INVESTIGACION Y DESARROLLO EN BIOINGENIERIA Y BIOINFORMATICA
Citación
Alzamendi, Gabriel Alejandro; Peterson, Sean D.; Erath, Byron D.; Hillman, Robert E.; Zañartu, Matías; Triangular body-cover model of the vocal folds with coordinated activation of the five intrinsic laryngeal muscles; Journal of Animal Ecology; Journal of the Acoustical Society of America; 151; 1; 1-2022; 17-30
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