Related Experiment Videos
Spatiotemporal chaos in excised larynx vibrations
1Department of Surgery, Division of Otolaryngology Head and Neck Surgery, University of Wisconsin Medical School, Madison, Wisconsin 53792-7375, USA.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 26, 2005
Summary
High subglottal pressure induces spatiotemporal chaos in excised larynx vibrations. This chaotic vocal fold vibration, analyzed via spatiotemporal methods, has significant biomedical applications for understanding voice production.
Area of Science:
- Biomedical Engineering
- Acoustic Physics
- Vocal Fold Dynamics
Background:
- Vocal fold vibration is crucial for voice production.
- Understanding the dynamics of vocal fold vibration is complex.
- Spatiotemporal chaos may influence vocal fold function.
Purpose of the Study:
- To investigate spatiotemporal chaos in excised larynx vibrations.
- To analyze the effects of subglottal pressure on vocal fold dynamics.
- To explore the biomedical applications of spatiotemporal analysis in phonation.
Main Methods:
- High-speed digital imaging of excised larynx vibrations.
- Spatiotemporal correlation analysis.
- Eigenmode analysis to assess vocal fold dynamics.
Main Results:
- High subglottal pressure leads to spatiotemporal chaos in vocal fold vibrations.
- Increased subglottal pressure decreased spatiotemporal correlation.
- Entropy in vocal fold vibrations increased with higher subglottal pressure.
Conclusions:
- Spatiotemporal chaos is a key characteristic of vocal fold vibration under high pressure.
- Spatiotemporal analysis provides valuable insights into vocal fold system dynamics.
- This research highlights potential biomedical applications for analyzing voice disorders.