Happily disgusted? 15 new emotions ID'd
Until recently, scientists had only identified six basic human emotions: happy, sad, fearful, angry, surprised and disgusted. These "emotion categories," as cognitive scientists like to call them, are defined by the facial muscles we use to express each emotion. "The problem with that is that we cannot fully understand our cognitive system ... if we do not study the full rainbow of expressions that our brain can produce," says Aleix Martinez, an associate professor at Ohio State University.
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