The op-art loving side of the internet has developed a new obsession – the reverspective optical illusion. Taking Reddit by ...

Our visual experience is constructed from a limited sampling of reality. Although our central vision is incredibly rich in detail and color, our peripheral vision is blurry, colorless, and lacking in ...

Lightness perception, the visual system’s ability to maintain a stable representation of surface reflectance despite varying illumination, has long intrigued researchers. Central to this field is the ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Visual illusions of motion are a major source of interest in the vision research community. Explaining how a still image can produce an illusory perception of motion is important for a more complete ...

Research shows that a certain kind of visual illusion, neon color spreading, works on mice. The study is also the first to combine the use of two investigative techniques called electrophysiology and ...

Look closely at this picture. At first glance, you can see a big tortoise in the centre of the image. But look closer, and ...

The famous Ebbinghaus illusion, named for its discoverer, the German psychologist Hermann Ebbinghaus (1850–1909). Despite appearances, the two orange circles are the same size. Have you ever looked at ...

Optical illusions are a treat for visually genius minds. These visual illusions are excellent at assessing and examining the workings of the human brain. Researchers around the world incorporate ...

"The Last Leaf" by O. Henry, published in 1907 in his collection The Trimmed Lamp and Other Stories of the Four Million, follows the story of "Johnsy" (Joanna), a young, impoverished artist who is ...