The brain is a machine that processes information, records it and gives orders like a computer. All its functions, however noble, result exclusively from the assembly of cellular elements, their interactions and the signals received from the outside world via the sense organs. But what method should we follow to penetrate a mechanism so hopelessly difficult that some eminent figures have no hesitation in relegating it to the category of "black boxes"?
Jean-Pierre Changeux, Communications cellulaires, Paris, Collège de France, October 2013.
