Voxel Scale Complex Networks of Functional Connectivity in the Rat Brain: Neurochemical State Dependence of Global and Local Topological Properties
Figure 1
Global parameter histograms. (a) Histograms of the node degree () reveal a power law dependence of frequency on (evident as a linear relationship in this log-log display) up to a high-frequency cutoff for all networks. The slope of the linear portion of the histograms is similar in each network as indicated by the lines of linear fit (shown here offset below the data for visual clarity) and the values of in Table 1. Note that the histogram for the vehicle network reaches zero at a lower value than the three drug challenge networks, indicating fewer nodes with very high degree. (b) Histograms of the clustering coefficient () for each network reveal an increased spread of values for each of the active drug networks relative to the vehicle network.
