Ebbinghaus Illusion

Imagine seeing two circles, one that is surrounded by bigger dots and the other by smaller dots. You would think the inner circles are different sizes. However, that assumption is wrong. In the Ebbinghaus Illusion, the rings of surrounding dots trick the brain into thinking the dots are different sizes when they are actually the same size (5). This is an example of a visual illusion. A visual illusion affects the way your brain and visual system perceive something or when the immediate visual perception and the actual image don't match. Understanding an image has more to do with your brain and less to do with your vision (4). Out of the five senses, sight makes up about 75% of the information received in the brain (1). To fully understand what your brain sees with a visual illusion, you must know what happens in the brain with a
This is an example of a refraction, a change of direction because of a change in in the wave velocity (6). The Hermann grid, a picture of black squares and white lines, is a picture illusion. Photoreceptors in the eye cells receive information about light and dark values. However, they can also “leak” this information to other nearby cells, and this causes you to see gray points (2). In the middle of the Indian Ocean is the Island of Mauritius. The water surrounding the coast of the island is a visual illusion itself because it looks as if a waterfall is underneath the surface of the ocean. This is caused because of two coastal shelves and sand that gradually sinks down in between them (7). Some visual illusions are used for safety purposes. Lines on the road are placed closer together on Chicago’s Lake Shore Drive. People think that they are going too fast, so they slow down as they drive around a sharp turn (4). Visual illusions are tools people have used in the past centuries to understand the brain and its