Micromechanical models for the Brownian motion of hair cell stereocilia

Wolfgang A. Svrcek-Seiler, Ilse C. Gebeshuber, Frank Rattay, Tamás S. Biro, Harald Markum

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Brownian motion of the hairs (stereocilia) of amphibian hair cells has been shown in experiments to be in the range of some nm. Our models of the Brownian motion of coupled harmonic oscillators with mechanical properties of stereocilia lead to similar displacements. Computer simulation shows that stochastic fluctuations enhance the encoding of low level acoustic signals. Stochastic resonance lowers the detection threshold of auditory signals to amplitudes one order of magnitude lower than that of the Brownian motion.

Original languageEnglish
Pages (from-to)623-630
Number of pages8
JournalJournal of Theoretical Biology
Volume193
Issue number4
DOIs
Publication statusPublished - 21 Aug 1998
Externally publishedYes

Fingerprint

Stereocilia
Brownian movement
hairs
Brownian motion
Cells
Cell
computer simulation
Auditory Threshold
mechanical properties
amphibians
acoustics
detection limit
Stochastic Resonance
Amphibians
Coupled Oscillators
cells
Harmonic Oscillator
Acoustics
Computer Simulation
Mechanical Properties

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Svrcek-Seiler, W. A., Gebeshuber, I. C., Rattay, F., Biro, T. S., & Markum, H. (1998). Micromechanical models for the Brownian motion of hair cell stereocilia. Journal of Theoretical Biology, 193(4), 623-630. https://doi.org/10.1006/jtbi.1998.0729

Micromechanical models for the Brownian motion of hair cell stereocilia. / Svrcek-Seiler, Wolfgang A.; Gebeshuber, Ilse C.; Rattay, Frank; Biro, Tamás S.; Markum, Harald.

In: Journal of Theoretical Biology, Vol. 193, No. 4, 21.08.1998, p. 623-630.

Research output: Contribution to journalArticle

Svrcek-Seiler, WA, Gebeshuber, IC, Rattay, F, Biro, TS & Markum, H 1998, 'Micromechanical models for the Brownian motion of hair cell stereocilia', Journal of Theoretical Biology, vol. 193, no. 4, pp. 623-630. https://doi.org/10.1006/jtbi.1998.0729
Svrcek-Seiler WA, Gebeshuber IC, Rattay F, Biro TS, Markum H. Micromechanical models for the Brownian motion of hair cell stereocilia. Journal of Theoretical Biology. 1998 Aug 21;193(4):623-630. https://doi.org/10.1006/jtbi.1998.0729
Svrcek-Seiler, Wolfgang A. ; Gebeshuber, Ilse C. ; Rattay, Frank ; Biro, Tamás S. ; Markum, Harald. / Micromechanical models for the Brownian motion of hair cell stereocilia. In: Journal of Theoretical Biology. 1998 ; Vol. 193, No. 4. pp. 623-630.
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