Structural Models of Cortical Networks with Long-Range Connectivity

Figure 7

Eigenvalue density of FN (left) and SW (right) RPNs ranging from local (top) to random (bottom) networks. Top: real eigenvalue spectrum of a (symmetric) locally connected network (𝑟=0.061, 𝑝=1, 𝜙=0). Note the exceptional peak of the density at small negative values around −1. Bottom: complex eigenvalue density for (nonsymmetric) RPNs with FN and SW connectivity. The corresponding parameters 𝑝 and 𝜙 are indicated within the plot. The logarithmic gray scale indicates densities up to about 16 per unit square (black).