Hermann Grid Illusion
What is it?
The Hermann Grid Illusion is a visual phenomenon where perceived gray blobs appear at the intersections of a grid, even though the grid is composed of black lines and white spaces. This illusion is thought to be a result of the way the brain processes visual information and perceives contrast and edges in the grid pattern.
Imagine you have a grid of black lines on a white background, like a checkerboard. Now, at the intersections where the lines meet, you might notice faint grayish spots, even though there's no gray in the actual grid. BrainHQ: Another Version of Hermann Grid This is the Hermann Grid Illusion. Your brain plays a trick on you, making it seem like there are gray blobs where there aren't any. It happens because of how our eyes and brain work together to process the contrast and patterns in the grid. Even though it's just black and white lines, your brain interprets it in a way that creates these illusory gray spots at the intersections. ...