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. 2014 Jul 9;9(7):e100805. doi: 10.1371/journal.pone.0100805

Figure 8. Evolution of networks with STDP and initially Gaussian-distributed weights.

Figure 8

A Time evolution of the symmetry measure when a frequency protocol is applied on a network, shown as average over Inline graphic representations. The shaded light grey areas represent the standard deviation (the total length of height of each band is twice the standard deviation). Solid black line: no pruning, Dashed grey line: with pruning Inline graphic B Example of an adjacency matrix at the end of the evolution for a network with frequency protocol and no pruning. For this example Inline graphic C The same as B but with pruning Inline graphic For this example Inline graphic D, E, F The same as A, B and C but with the sequential protocol applied. The connectivity matrix in panel E has Inline graphic The connectivity matrix in panel F has Inline graphic