Click photo to enlarge TO GO WITH AFP STORY US-TECHNOLOGY-
IMFORMATION This image obtained August 18, 2011 courtesy of IBM
shows a Cognitive Computing Chip. IBM researchers on August 18,
2011 unveiled a new generation of experimental computer chips
designed to emulate the brainâ s abilities for perception,
action and cognition. The technology could yield many orders of
magnitude less power consumption and space than used in todayâ s
computers. AFP PHOTO/IBM/HANDOUT/RESTRICTED TO EDITORIAL USE -
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CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS/NO SALES (Photo
credit should read HO/AFP/Getty Images)  SAN FRANCISCO --
Computers, like humans, can learn. But when Google (GOOG) tries
to fill in your search box based only on a few keystrokes, or
your iPhone predicts words as you type a text message, it's only
a narrow mimicry of what the human brain is capable.  The
challenge in training a computer to behave like a human brain is
technological and physiologi