Correlation transmission of a pair of integrate-and-fire neurons.

A Output spike synchrony as a function of input correlation and for four different values of input synchrony , , and (gray-coded). Dashed black line with slope indicates . B Corresponding mean output firing rate of the neurons. C,D Cross-correlation functions at input correlations (C) and (D) (indicated by dashed vertical lines in A) for the three values of input synchrony as indicated in C.