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Joe Manuel posted an update in the group
7 months ago (edited)Knowledge Shared = Knowledge Multiplied Duchenne smile
A Duchenne smile is the one that reaches your eyes, making the corners wrinkle up with crow’s feet. It’s the smile most of us recognise as the most authentic expression of happiness.
A Duchenne smile is produced by the joint action of two facial muscles. The zygomaticus major muscle lifts the corners of your mouth while the orbicularis oculi raises your cheeks, causing the subsequent laugh lines at the outside corners of your eyes.
Origin of the name Duchenne Smile / Why is it called Duchenne Smile.
This kind of smile is named for Guillaume Duchenne, a 19th-century scientist whose major contributions center on mapping the muscles of the human body, including the muscles that control facial expression.
Non-Duchenne smiles shouldn’t necessarily be considered “fake,” However,The key difference between this “real” happy smile and a “fake” happy smile lies in the orbicularis oculi – muscles that wrap around the eyes. All smiling involves contraction of the zygomatic major muscles, which lifts the corners of the mouth. But a Duchenne smile is characterised by the additional contraction of the orbicularis oculi, crumpling the skin around the eyes into crows’ feet.
Sandeep John, Akruthi R and 4 others1 Comment-
Interesting Joe. The pic reminds me of few foreign crickters during their post match presentation ceremonies Can we trust people with such smiles? Also where can we find people with such smiling faces?
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