Human brain more like city grid, less like bowl of spaghetti

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Stunning new visuals of the brain reveal a deceptively simple pattern of organization in the wiring of this complex organ.Instead of nerve fibers travelling willy-nilly through the brain like spaghetti, as some imaging has suggested, the new portraits reveal two-dimensional sheets of parallel fibers crisscrossing other sheets at right angles in a gridlike structure that folds and contorts with the convolutions of the brain.  more...