Figure 4.

Spike-train irregularity (A) and pairwise correlations (B) in the SSAI-state. Dependence of the mean coefficient of variation CV, see Equation (9), of the inter-spike intervals (A) and the mean spike-train correlation coefficient Equation (11) (B) on the synaptic weight J and the relative strength g of inhibition. The gray-shaded area marks regions where activity was not sufficient for analysis (see Figure 3A). Other parameters as in Figure 1.