highly significantP<3.1x10 -87
Comparing synchronized neurons with a fixed I-E delay of 5 ms, we observed a highly significant correlation (r = 0.99, P<3.1x10 -87 , Spearman Correlation, Fig. 4b ) between the excitatory input strength and the Rayleigh statistic, the criterion we used to measure the statistical significance of stimulus-synchronization.