FIG. 3.

(color online). Rank-count plot from a motion-sensitive blowfly neuron, logs base 10; discretization is τ = 1 ms, and N = 40. The black dots represent empirical rank-ordered counts. The blue dots represent rank-ordered counts from a simulated refractory Poisson spike train with the input stimulus the same as in the experiment, and with mean firing rate and refractory period matched to the experimental data. The red line represents a slope of −1 as a guide to the eye.