Fig. 9
From: Jacobian Granger causality for count and binary data with applications to causal network inference

Details on the inferred networks. (a,b) Inferred adjacency matrices for the first measurement of the primary visual cortex in monkey 1 (section) when presented with the stimulus (a) white noise; (b) natural movie. Rows represent source nodes and columns represent target nodes. The gray areas represent the absence of edges. We observe a sparser network in (a) relative to (b), while (b) shows a larger number of self-excitatory connections along the diagonal. (c–j) Joint distribution of the in-degree and out-degree in each network. (c–f) monkey 1, (g–j) monkey 2; (c,d,g,h): white noise, (e,f,i,j) natural movie. In each monkey-stimulus pair, the plots are ordered from experiment 1 to 2. The colorbar measures the frequency of each bin.