Brain’s wiring: More network than pyramid? — Science Blog: "Neuroscientists are split between a traditional view that the brain is organized as a hierarchy, with most regions feeding into the “higher” centers of conscious thought, and a more recent model of the brain as a flat network similar to the Internet.
“We started in one place and looked at the connections. It led into a very complicated series of loops and circuits. It’s not an organizational chart. There’s no top and bottom to it,” Swanson said."
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