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Added noise enhances ear sensitivity: mammalia

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Ear cells and hairs / Gray's Anato.. / LicensePD - Public Domain

Receptive organelles, or hair bundles, of the inner ear hair cells have increased sensitivity for signal detection due to added noise creating nonlinear stochastic resonance.

BIOMIMICRY TAXONOMY
Summary
"In this multicellular model for peripheral auditory coding the enhancing effect of Brownian noise on the high sensitivity of the auditory system was demonstrated. It was shown that the noise quantitatively accounts for the detection of weak pure tones which would otherwise either evoke receptor potentials too small to elicit spikes at all or too few spikes sufficient for determination of the stimulus frequency." (Gebeshuber 2000:1865)
Bioinspired products and application ideas

Application Ideas: Enhance signal detection capabilities in threshold detectors by adding noise.

Industrial Sector(s) interested in this strategy: Telecommunication

Experts
Institute of Microengineering and Nanoelectronics (IMEN)
Ille C. Gebeshuber
Universiti Kebangsaan Malaysia
References
Gebeshuber, IC. 2000. The influence of stochastic behavior on the human threshold of hearing. Chaos, Solitons, and Fractals. 11(12): 1855-1868.
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Sherry
over 5 years ago
Thanks to Ille Gebeshuber for adding this strategy.
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