What is Smile Detection?

"Duchni Smile" is a well-known behavioral psychologist Paul Ekman. Through several years of research, he has summarized the key skills to distinguish "masquerade smile". According to Ekman, the kind of smile proposed by Duchenel-including the facial sacrum muscles and the muscles around the eyes-is really a happy smile from the heart.

Duchenel smile

For a long time, people were skeptical about whether expressions could express true emotions. Many people think that facial expressions cannot tell the true feelings of people. Even in some cultures, the expression of "laugh" itself is synonymous with "surprise", "difference", and even "embarrassment", not happiness.

Anthropologist Weston La Barre believes that the difference in the meaning of smiles between different cultures is a sign that human emotions are not inherently universal, but are deeply shaped by acquired culture. In the field of experimental psychology, people once thought that expressions could not directly express the current mood. Behavioral psychologist known for "seeing through lies" at the University of California

Discover the secret hidden behind the smile

In 1924, in a classic experiment by psychologist Landis, participants were to observe the expressions of other people in certain situations. The observed person may be listening to music, watching pornographic pictures, smelling ammonia, receiving electric shocks. , Or behead a living mouse. In fact, the last observer rarely knows exactly what the observed is doing. Interestingly, observers judge the number of "laughs" the most, which means that people can't distinguish the true "laugh" from the "laugh" in other emotions.

When you walk into the mall for shopping, the service lady shows you white teeth, a beautiful smile on the corner of your mouth, and you feel relaxed and happy. But can you tell if the smile is a welcome from the heart or a professional performance? It now seems that the focus is to look at the muscles of others through a smile. Of course, we hope that everyone's smile is sincere and unpretentious, so that "Duchni Smile" will appear in people's real life.