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. 2008 Sep 26;4(9):e1000190. doi: 10.1371/journal.pcbi.1000190

Figure 8. Levels of dynamic organization in different graphs with a hierarchical distribution of modules.

Figure 8

The dynamic modularity Qdyn for both the TM reference (blue ▵) and the CN reference (red ○) is depicted as a function of the rate of spontaneous excitations f. (A) The hierarchical scale-free graph displays properties of both, the modular and the BA graph. Thus, the two levels of dynamic integration are visible within the same network for the respective values of f. The transition between these two levels corresponds to the transition from spike to burst dynamics. (B) The mapped fractal graph from [54] lacks a scale-free degree distribution and, consequently, hubs, which is reflected in low values of Inline graphic. The absence of ring-like excitation patterns also explains the extension of the high-value range of Inline graphic towards low values of f.