Outer hair cell resonance theory

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  • 新聴覚機構論 ： 外有毛細胞共振説の提唱

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<p>The outer hair cell (OHC) resonance theory has been proposed as a new aural mechanism of mammalia. A clue supporting this new theory serendipitously came to my mind directly after reading Dallos's review on OHC and prestin in 2015. An OHC resonates with stimulating sound by the same frequency, and the body of the OHC is reduced by a few microns by the activated motor protein prestin. The hairs of the OHC attached at the undersurface of the tectorial membrane then pull down the area to which they are attached, creating a ridge that pushes down Hensen's strip to make contact with the cilia of an inner hair cell (IHC). On contact being made with the cilia of the IHC, a positive electrical current of + 80 mV from Hensen's strip flows into the IHC, which is charged at − 60 mV, creating cochlear microphonic potential (CM). The intensity of the sound is received as amperes (A) according to the degree of contact with the cilia of the IHC. In terms of this new OHC resonance theory concerning the mechanism underlying CM, the fine frequency discrimination ability of the sound and the absolute hearing etc. can be exactly and clearly explained. In conclusion, Békésy's theory, which is rife with errors, must be excluded. Future experiments of auditory fields based on the OHC resonance theory should be expand, infinitely and abundantly.</p>

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  • jibi to rinsho

    jibi to rinsho 66 (3), 79-98, 2020-05-20

    JIBI TO RINSHO KAI

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