Noise measurements in axon membranes

  • Harvey M. Fishman
Part of the Faseb Monographs book series (FASEBM, volume 5)


A fluctuation (noise) component, which arises from spontaneous microscopic conductance perturbations, about the mean conduction characteristic of small areas of axon membrane has been measured and appears to relate to voltage-dependent potassium-ion movements. Since the kinetics of relaxing membrane structures which produce ion permeation noise may be deduced from the form of power density spectra of fluctuations, a comparison of measured and theoretical noise spectra may lead to direct tests of conduction models.—Fishman, H. M. Noise measurements in axon membranes. Federation Proc. 34: 1330–1337, 1975.


Noise Spectrum Power Density Spectrum Corner Frequency Current Noise Axon Membrane 
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Copyright information

© Federation of American Societies 1975

Authors and Affiliations

  • Harvey M. Fishman
    • 1
  1. 1.Department of Physiology and BiophysicsUniversity of Texas Medical BranchGalvestonUSA

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