From The Clarion-Ledger:
The notion that humans use only about 10 percent of those billions of neurons floating around in their skulls and many brain cells are, in a sense, on permanent vacation, just waiting to be roused from their idyll. Wrong. That notion grew from a 19th century experiment in which a researcher removed ever larger portions of brain tissue from a range of animals and then observed how that affected their behavior, University of California, Irvine cognitive science professor Gregory Hickok recently wrote in The New York Times.  

Originally ran in Chicago Tribune. Link unavailable. Instead see http://www.clarionledger.com/story/opinion/editorials/2014/08/20/need-va....