Mona Lisa's smile has repeatedly been a subject of many—greatly varying—interpretations. Some have described the smile as both innocent and inviting. Many researchers have tried to explain why the smile is seen so differently by people. The explanations range from scientific theories about human vision to curious supposition about Mona Lisa's identity and feelings. Professor Margaret Livingstone of Harvard University has argued that the smile is mostly drawn in low spatial frequencies, and so can best be seen from a distance or with one's peripheral vision. Thus, for example, the smile appears more striking when looking at the portrait's eyes than when looking at the mouth itself. Christopher Tyler and Leonid Kontsevich of the Smith-Kettlewell Institute in San Francisco believe that the changing nature of the smile is caused by variable levels of random noise in the human visual system. Dina Goldin, Adjunct Professor at Brown University, has argued that the secret is in the dynamic position of Mona Lisa's facial muscles, where our mind's eye unconsciously extends her smile; the result is an unusual dynamicity to the face that invokes subtle yet strong emotions in the viewer of the painting.
In late 2005, Dutch researchers from the University of Amsterdam ran the painting's image through "emotion recognition" computer software developed in collaboration with the University of Illinois at Urbana-Champaign. The technology demonstration found the smile to be 83% happy, 9% disgusted, 6% fearful, 2% angry, less than 1% neutral, and 0% surprised.
I was really amazed with this theory about Mona Lisa's smile. This theory made me believe that the painting was the famous painting of all times. For only a smile they are brainstorming and even formulated theories. I was like to laugh about what are the professors and researchers are doing. It's like a waste of time to observe and test the painting's smile.
