Original Link: http://www.wsj.com/articles/apple-buys-artificial-intelligence-startup-emotient-1452188715?mod=LS1

Apple Inc. has purchased Emotient Inc., a startup that uses artificial-intelligence technology to read people’s emotions by analyzing facial expressions.

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Doctors also have tested it to interpret signs of pain among patients unable to express themselves, and a retailer used it to monitor shoppers’ facial expressions in store aisles, the company had said.