Calculation of the Kullback-Leibler distance between point process models
نویسندگان
چکیده
We have developed a method for quantifying neural response changes in terms of the Kullback-Leibler distance between the intensity functions for each stimulus condition. We use empirical histogram estimates to characterize the intensity function of the neural response. A critical factor in determining the histogram estimates is selection of binwidth. In this work we analytically derive the KullbackLeibler distance between two Poisson processes and two dead time modified Poisson processes in terms of the binwidth selected. Our results show that for constant intensity processes having the same number of expected counts, the distance between the dead time modified processes will be larger than between the Poisson processes.
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