Monday, March 24, 2014

FACES SHOW FEAR AND DISGUST TO HELP EYES SEE

Facial expressions—such as wide-eyed fear or narrow-eyed disgust—are the result of how our eyes have evolved to perceive, not to communicate.
Our eyes widen in fear, boosting sensitivity and expanding our field of vision to locate surrounding danger. When repulsed, our eyes narrow, blocking light to sharpen focus and pinpoint the source of our disgust.

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