Geometric Requirements for Tectorial Membrane Traveling Waves in the Presence of Cochlear Loads

Geometric Requirements for Tectorial Membrane Traveling Waves in the Presence of Cochlear Loads

Recent studies suggest that wave motions of the tectorial membrane (TM) play a critical role in determining the frequency selectivity of hearing. However, frequency tuning is also thought to be limited by viscous loss in subtectorial fluid. Here, we analyze effects of this loss and other cochlear lo...

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Veröffentlicht in:Biophysical journal 2017-03, Vol.112 (6), p.1059-1062
Hauptverfasser: Sellon, Jonathan B., Ghaffari, Roozbeh, Freeman, Dennis M.
Format: Artikel
Sprache:eng
Schlagworte:
Biomechanical Phenomena
Biophysical Letter
Cochlea
Decay rate
Ears & hearing
Fluids
Frequency dependence
Hearing
Mechanical Phenomena
Membranes
Models, Biological
Movement
Physiological effects
Physiology
Tectorial Membrane - metabolism
Tectorial Membrane - physiology
Thickness
Traveling waves
Viscoelasticity
Viscosity
Waves
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Zusammenfassung:Recent studies suggest that wave motions of the tectorial membrane (TM) play a critical role in determining the frequency selectivity of hearing. However, frequency tuning is also thought to be limited by viscous loss in subtectorial fluid. Here, we analyze effects of this loss and other cochlear loads on TM traveling waves. Using a viscoelastic model, we demonstrate that hair bundle stiffness has little effect on TM traveling waves calculated with physiological parameters, that the limbal attachment can cause small (
ISSN:0006-3495
1542-0086
DOI:10.1016/j.bpj.2017.02.002