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Evidence of mechanical nonlinearity and frequency selective wave amplification in the cochlea

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A previously unsuspected mechanical response of the cochlear transduction mechanism has recently been discovered. It can be monitored outside the cochlear. Theoretical and experimental work leading to its discovery and identification are briefly reviewed. Its significance for models of the second filter and cochlear nonlinearity is discussed. An active wave amplification mechanism in the cochlea is proposed.

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This work is supported by a grant from the Medical Research Council

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Kemp, D.T. Evidence of mechanical nonlinearity and frequency selective wave amplification in the cochlea. Arch Otorhinolaryngol 224, 37–45 (1979). https://doi.org/10.1007/BF00455222

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Key words

  • Cochlear selectivity and nonlinearity
  • Active mechanical response of