by C.J. Rozell, D.H. Johnson and R.M. Glantz
Abstract:
We present a method based on information-theoreti distances for measuring the information transfer efficiency of voltage to impulse encoders. In response to light pulses, we simultaneously recorded the EPSP and spiking output of crayfish sustaining fibers. To measure the distance between analog EPSP responses, we developed a membrane noise model that accurately captures stimulus-induced nonstationarities. By comparing the EPSP and spike responses, we found encoding efficiencies on the order of $10^{-4}$, with interesting dynamics occurring during initial transients. A simple analog to point-process converter predicted the small information transfer efficiencies and dynamic properties we measured.
Reference:
Measuring information transfer in crayfish sustaining fiber spike generatorsC.J. Rozell, D.H. Johnson and R.M. Glantz. Biological Cybernetics, 90(2), pp. 89–97, February 2004.
Bibtex Entry:
@ARTICLE{rozell.04,
author = {Rozell, C.J. and Johnson, D.H. and Glantz, R.M.},
title = {Measuring information transfer in crayfish sustaining fiber spike generators},
journal = {Biological Cybernetics},
year = {2004},
volume = {90},
number = {2},
pages = {89--97},
month = {February},
webnote = {Copyright held by Springer-Verlag. The original
publication is available at springerlink.com. DOI:10.1007/s00422-003-0458-y},
abstract = {We present a method based
on information-theoreti distances for measuring the information
transfer efficiency of voltage to impulse encoders. In response to light
pulses, we simultaneously recorded the EPSP and spiking output of
crayfish sustaining fibers. To measure the distance between analog
EPSP responses, we developed a membrane noise model that accurately
captures stimulus-induced nonstationarities. By comparing the EPSP
and spike responses, we found encoding efficiencies on the order
of $10^{-4}$, with interesting dynamics occurring during initial
transients. A simple analog to point-process converter predicted the small
information transfer efficiencies and dynamic properties we measured.},
url = {http://siplab.gatech.edu/pubs/rozellBC2004.pdf},
}