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At First Blush, You Look Happy—or Sad, or Angry


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A happy face as originally photographed (left), and the same photo retouched to emphasize changes in color (right).

Researchers at The Ohio State University have discovered a connection between the central nervous system and facial emotional expression.

Credit: The Ohio State University

Researchers at The Ohio State University have discovered a previously undocumented connection between the central nervous system and emotional expression in the face.

The study shows people can identify other people's feelings up to 75% of the time using only subtle shifts in color around the nose, eyebrows, cheeks, or chin.

To conduct the study, the researchers took hundreds of photos of facial expressions and separated the images into different color channels. Computer analysis revealed that emotions like "happy" or "sad" formed unique color patterns.

To test whether colors alone could convey emotions, the researchers superimposed the different emotional color patterns on pictures of faces with neutral expressions.

They also wrote algorithms that recognized human emotion based on face color with up to 90% accuracy.

The researchers hope the algorithms will help artificial intelligence recognize and emulate human emotions.

From The Ohio State University
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Abstracts Copyright © 2018 Information Inc., Bethesda, Maryland, USA


 

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