Figure 1. TT network structures observed in VMs and AMs and computer generated TT network structures.
A. TT network structure in a normal rat VM (Song et al. [2]). B. TT network in a failing rat VM (Song et al. [2]). C. Sheet-like TT structure in a failing human VM (Seidel et al. [15]). D. TT network in a normal mouse AM (Brandenburg et al. [3]). E. A computer generated uniformly random TT network. F. A computer generated non-uniformly random TT network (AT-to-TT ratio=~3). G. A computer generated sheet-like TT structure.