MUTUAL SYNCHRONIZATION IN ENSEMBLES OF GLOBALLY COUPLED NEURAL NETWORKS

The collective dynamics in globally coupled ensembles of identical neu ral networks with random asymmetric synaptic connections is investigat ed. We find that this system shows a spontaneous synchronization trans ition, i.e., networks with synchronous activity patterns appear in the ensemble when the coupling intensity exceeds a threshold. Under furth er increase of the coupling: intensity, the entire ensemble breaks dow n into a number of coherent clusters, until complete mutual synchroniz ation is eventually established.