Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
| Autor: | Riccardo Hofer, Christian T. Herbst, Jan G. Švec, Maxime Garcia, Vit Hampala |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Larynx
Excised larynx medicine.medical_specialty Computer science Physiology Acoustics General Chemical Engineering Vocal Cords Audiology Vibration General Biochemistry Genetics and Molecular Biology 03 medical and health sciences 0302 clinical medicine Phonation medicine Humans Vocal fold vibration 030223 otorhinolaryngology Electroglottograph Human voice General Immunology and Microbiology General Neuroscience Voice production medicine.anatomical_structure Vocal folds 030217 neurology & neurosurgery |
| Zdroj: | Journal of Visualized Experiments. |
| ISSN: | 1940-087X |
| DOI: | 10.3791/55303-v |
| Popis: | The voice of humans and most non-human mammals is generated in the larynx through self-sustaining oscillation of the vocal folds. Direct visual documentation of vocal fold vibration is challenging, particularly in non-human mammals. As an alternative, excised larynx experiments provide the opportunity to investigate vocal fold vibration under controlled physiological and physical conditions. However, the use of a full larynx merely provides a top view of the vocal folds, excluding crucial portions of the oscillating structures from observation during their interaction with aerodynamic forces. This limitation can be overcome by utilizing a hemi-larynx setup where one half of the larynx is mid-sagittally removed, providing both a superior and a lateral view of the remaining vocal fold during self-sustained oscillation. Here, a step-by-step guide for the anatomical preparation of hemi-laryngeal structures and their mounting on the laboratory bench is given. Exemplary phonation of the hemi-larynx preparation is documented with high-speed video data captured by two synchronized cameras (superior and lateral views), showing three-dimensional vocal fold motion and corresponding time-varying contact area. The documentation of the hemi-larynx setup in this publication will facilitate application and reliable repeatability in experimental research, providing voice scientists with the potential to better understand the biomechanics of voice production. |
| Databáze: | OpenAIRE |
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