"The human brain's connections turn out to be a an orderly 3D grid structure with no diagonals. 2D sheets of parallel fibers cross at right angles -- "like the warp and weft of a fabric." The first pictures from the most powerful brain scanner of its kind reveal an "astonishingly simple architecture." This diffusion spectrum image of a whole human brain came from the new Connectom scanner, part of the NIH's Human Connectome Project." http://www.nih.gov/news... \\ See also Science 30 March 2012, 335(6076):1628-1634, http://www.sciencemag.org/content... - Adriano