Abstract
We demonstrate that in Otoa-/- mice, in which the inner-ear-specific protein otoancorin is absent, excitation of the outer hair cells and cochlear amplification is normal. This finding is remarkable because the tectorial membrane (TM), although remaining functionally attached to the outer hair cell bundles, is completely detached from the spiral limbus. Therefore, as in ancestral vertebrate auditory organs, where inertia provides the excitatory force to the hair cells, it is the inertia of the TM that must be important for exciting the outer hair cells, setting the sensitivity of their transducer conductance, and determining the precise timing of cochlear amplification.
Original language | English |
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Title of host publication | What Fire is in Mine Ears |
Subtitle of host publication | Progress in Auditory Biomechanics - Proceedings of the 11th International Mechanics of Hearing Workshop |
Pages | 139-140 |
Number of pages | 2 |
Volume | 1403 |
DOIs | |
Publication status | Published - 12 Dec 2011 |
Event | 11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics - Williamstown, MA, United States Duration: 16 Jul 2011 → 22 Jul 2011 |
Workshop
Workshop | 11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics |
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Country/Territory | United States |
City | Williamstown, MA |
Period | 16/07/11 → 22/07/11 |
Keywords
- inner ear
- otoancorin
- outer hair cells
- tectorial membrane