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Stochastic resonance at the single-cell level

Author

Listed:
  • Sergey M. Bezrukov

    (National Institutes of Health
    St Petersburg Nuclear Physics Institute)

  • Igor Vodyanoy

    (National Institutes of Health
    Office of Naval Research)

Abstract

Bezrukov and Vodyanoy reply — The possibility that the mechanism of stochastic resonance might account for the sensitivity of organisms to industrial low-frequency magnetic and/or electric fields has inspired much discussion1,2,10. In a recent Letter6 we formulated a physical model of stochastic resonance that permits quantitative analysis of the phenomenon in a variety of systems. Astumian and co-workers apply our results to the intriguing but difficult question of the role of stochastic resonance in signal detection at the level of a single cell. For a ‘typical cell’ of 100 μm radius, they come to a conclusion that stochastic resonance increases cell sensitivity to small signals,but that this increase is not significant enough to account for the effects reported by others2. Although we agree with their treatment of our theory, we show that for smaller cells stochastic resonance can improve signal detection considerably.

Suggested Citation

  • Sergey M. Bezrukov & Igor Vodyanoy, 1997. "Stochastic resonance at the single-cell level," Nature, Nature, vol. 388(6643), pages 633-633, August.
    • Handle: RePEc:nat:nature:v:388:y:1997:i:6643:d:10.1038_41688
    DOI: 10.1038/41688
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