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  • In Reading Facial Emotion, Context Is Everything

    Health Canal - 10/04/2011

    In a close-up headshot, Serena Williams’€™ eyes are pressed tensely closed; her mouth is wide open, teeth bared. Her face looks enraged. Now zoom out: The tennis star is on the court, racket in hand, fist clenched in victory. She’€™s not angry.