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@article{967857,
author = {Košťál, Lubomír and Lánský, Petr and Pokora, Ondřej},
article_number = {7},
doi = {http://dx.doi.org/10.1371/journal.pone.0021998},
keywords = {FISHER INFORMATION; ENTROPY; DISTRIBUTIONS; FREQUENCY; DENSITIES; DISCHARGE; INTERVALS; SUPPORT; NEURONS; SIGNALS},
language = {eng},
issn = {1932-6203},
journal = {PloS ONE},
title = {Variability measures of positive random variables},
volume = {6},
year = {2011}
}
TY - JOUR
ID - 967857
AU - Košťál, Lubomír - Lánský, Petr - Pokora, Ondřej
PY - 2011
TI - Variability measures of positive random variables
JF - PloS ONE
VL - 6
IS - 7
SP - e21998
EP - e21998
SN - 19326203
KW - FISHER INFORMATION
KW - ENTROPY
KW - DISTRIBUTIONS
KW - FREQUENCY
KW - DENSITIES
KW - DISCHARGE
KW - INTERVALS
KW - SUPPORT
KW - NEURONS
KW - SIGNALS
N2 - During the stationary part of neuronal spiking response, the stimulus can be encoded in the firing rate, but also in the statistical structure of the interspike intervals. We propose and discuss two information-based measures of statistical dispersion of the interspike interval distribution, the entropy-based dispersion and Fisher information-based dispersion. The measures are compared with the frequently used concept of standard deviation. It is shown, that standard deviation is not well suited to quantify some aspects of dispersion that are often expected intuitively, such as the degree of randomness. The proposed dispersion measures are not entirely independent, although each describes the interspike intervals from a different point of view. The new methods are applied to common models of neuronal firing and to both simulated and experimental data.
ER -
KOŠŤÁL, Lubomír, Petr LÁNSKÝ a Ondřej POKORA. Variability measures of positive random variables. \textit{PloS ONE}. 2011, roč.~6, č.~7, s.~e21998, 11 s. ISSN~1932-6203. Dostupné z: https://dx.doi.org/10.1371/journal.pone.0021998.
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