Fig. 6.

Population sizes matter for connectivity. Connectivity within and between areas V1 and V2 computed as pairwise indegrees (left) and connection probabilities (right). The latter are defined as the probability of $\ge 1$ synapse between any pair of source and target neurons, and can be obtained in linear approximation from the former by dividing by the size of the source population. The histograms show the occurrence of values in the bins defined by the color scales