Fig. 7
Analysis 3: Interspike interval histogram (ISIH) analysis of artificially generated spike trains. Two hundred spike trains were generated using either a stationary Poisson or a stationary gamma process using the Elephant package. The ISIH using a 10 ms bin size and the CV2 variability measure were computed for each spike train. The ISIH was plotted with the CV2 value and saved as a PNG file. All files were collected into a single folder. The first one hundred files contain plots obtained from the spike trains generated by the stationary Poisson process (range 1–100, identified with the blue color in the figure), while the last one hundred files contain the plots of the spike trains generated by the stationary gamma process (range 101–200, identified by the green color in the figure). Note that the files from both result sets are indistinguishable (plots for the spike train number 10, generated by a Poisson process, and number 162, generated by a gamma process, are shown). Visually, the plots of both result sets show an exponentially decaying ISI distribution, and all spike trains have an ISI variability measure with values close to 1.
