Spatiotemporal chaos in excised larynx vibrations.
Spatiotemporal chaos in excised larynx vibrations is reported using high-speed digital imaging. Spatiotemporal correlation and eigenmode analyses are applied to describe the spatiotemporal dynamics of the vocal fold vibrations and to investigate the effects of subglottal pressure. High subglottal pressures cause spatiotemporal chaos with decreased spatiotemporal correlation and increased entropy in the vocal fold vibrations. Spatiotemporal analysis shows a valuable biomedical application in investigating the spatiotemporal chaotic dynamics of the vocal fold system.
Zhang
Yu
Y
Department of Surgery, Division of Otolaryngology Head and Neck Surgery, University of Wisconsin Medical School, Madison, Wisconsin 53792-7375, USA.
Jiang
Jack J
JJ
D000818:Animals; D001683:Biological Clocks / Q000502:physiology*; D003198:Computer Simulation; D004285:Dogs; D007090:Image Interpretation, Computer-Assisted; D066298:In Vitro Techniques; D008954:Models, Biological; D009068:Movement / Q000502:physiology*; D017711:Nonlinear Dynamics; D010699:Phonation / Q000502:physiology*; D010812:Physical Stimulation / Q000379:methods; D011312:Pressure; D014732:Vibration; D014741:Video Recording; D014827:Vocal Cords / Q000033:anatomy & histology* / Q000502:physiology*