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When people gaze at Leonardo da Vinci's immortal work "Mona Lisa", they are often confused by the smile of the character in the painting. At first glance, people will feel a peaceful smile; upon further observation, they will feel that the smile disappears; at another glance, the smile reappears, and then recedes...

Why does this painting happen like this? magical effect? In a recent issue of Science, neurobiologist Margaret Livingstone of Harvard Medical School explained this. She believes that Mona Lisa's mysterious smile is not so much related to the painter's painting skills, but rather to the misalignment of the eyes.

Livingstone believes that the steady appearance of Mona Lisa’s smile is actually the result of our eye movements. According to Livingstone's analysis, the human eye observes the world through two different areas. One is the central area, called the central fovea of ??the retina, which allows people to see colors, recognize printed symbols, and distinguish details; the other is the peripheral area, which is distributed around the central fovea and allows people to distinguish black and white and capture images. Movement, distinguishing shadow areas. When people observe others, they often look into their eyes. When appreciating the painting "Mona Lisa", the first thing people pay attention to is the eyes of the character. When the center of the observer's eyes is on Mona Lisa's eyes, the "peripheral" line of sight falls on her mouth. Because the peripheral field of view is not detail-oriented, it quickly notices the shadows of Mona Lisa's cheekbones, which in turn make people aware of the smile. However, when looking directly at Mona Lisa's mouth, the central area of ??the human eye will not notice the shadow, so "people can never see the smile from her mouth." From this, Livingstone concluded that Mona Lisa's smile appears and disappears entirely due to the effect of the observer's eyes wandering across her face. Margaret Livingston, a famous neurologist in the United States and a scholar at Harvard University, recently put forward her own opinions and theoretical basis on the "Mona Lisa Smile", which is known as the mystery of the world. She believes the smile may be an optical illusion. If you look directly at Mona Lisa's lips, the smile cannot be seen. Livingston explained that the human visual system has two observation areas, one responsible for color discrimination and observing bright spots called the central area, and one responsible for black and white and observing shadows and motion called the outer area. To prove her theory, the scientist conducted an experiment. She scanned a photo and removed the shadows so that the smile could not be seen when viewed from the central area. After adding the shadows, the smile could be observed from the outer area. But Mona Lisa's smile remains a mystery, with some believing it to be a symptom of facial paralysis, others blaming it on the thrill of pregnancy.

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Newnet Beijing News on May 20: The British "Independent" reported on the 19th: Over the past five hundred years, Leonardo da Vinci's portrait of the Mona Lisa has fascinated countless art lovers but also baffled scholars. Recently, an American scientist claimed to have discovered the secret behind Mona Lisa's smile.

When Leonardo da Vinci painted the mouth of the "Mona Lisa", he used the technique of blurring the outline. This technique literally means "evaporating like smoke" in the original Italian text.

Livingstone, a neurobiologist at Harvard University in the United States, believes that this is not just a simple blurring technique. Da Vinci also tried to "trick" human vision when painting, making the viewer look from the side. , can you clearly see the smile of "Mona Lisa".

Livingstone proposes this theory in his new book "Vision and Art: The Biology of Seeing." She said in the book: A smile painted with a blurry technique is more obvious in peripheral vision, so when you focus on her mouth, the smile will disappear, just like when we look at dim stars, looking directly at the stars will will disappear.

However, some scholars have criticized that the scientists who claim to have unlocked the secret behind the "Mona Lisa" are just trying to attract the media.

Answer: yanfei3331551 - Senior Manager Level 6 3-1 20:05