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

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