Fig 10. Emergence of assemblies in the presence of structured external input.
A. Mean clustering coefficient versus the pairwise correlation coefficient of the input pattern. The strength of the correlation was provided as ratios (0.01, 0.05, 0.125, 0.25, 0.375 and 0.5) of the possible maximum weight of each individual synaptic connection wmax. B. Mean global efficiency versus the pairwise correlation coefficient of the input pattern. C. Mean modularity versus the pairwise correlation coefficient of the input pattern. The rapid increase of the clustering coefficient and the modularity combined with a decrease of the global efficiency is a feature of robust assembly formation. Sufficiently strong correlations in the external signal generate tight assemblies. All results are calculated from 100 trials at steady state connectivity. Error bars represent the standard error of the mean.