FIG. 1.

Structural network analysis visualizations. Left: A visualization of imaging-based reconstructions of anatomy, showing diffusion magnetic resonance imaging (MRI)-based tractography and T1-weighted MRI-based gray matter segmentations. The left hemisphere shows Desikan–Killiany regions-of-interest and the right hemisphere shows streamline tractography curves used to define connectivity between regions. Right: A visualization of a structural network model derived from neuroimaging data. The left hemisphere shows Desikan–Killiany regions-of-interest and the right hemisphere shows a node-link diagram representing the topological organization of white matter. Nodes are placed at the centroid of each region and the links are derived from the average fiber bundle length between the pairs of regions with structural connections. Color images available online at www.liebertpub.com/brain