[aaavl2821]

their theory subdivides the brain into "local" networks, which are tightly connected and relatively stable, and "random" global connections, which connect various local regions in a more unstable manner. they propose that there are two kinds of intelligence, crystallized / persistent intelligence, and fluid intelligence. their perspective is that intelligence is governed not by specific regions of the brain, or specific networks, or specific overlap between networks, but by dynamic reorganization of various connectivity networks

note that this is an opinion article explaining an emerging theory. the theory / field of study is based in computational network models based on data from fmri and diffusion tensor mri and other methods. they do not focus on cellular or molecular biology, genetics, etc. their perspective focuses on brain organization in terms of network efficiency