This illusion tests contrast sensitivity ... playing with our perception of color, light, and patterns. A new optical ...

The first step in solving an optical illusion is to grasp the basic principles behind it. Many illusions rely on contrast, color, perspective, or movement. By understanding these basics ...

color, and contrast, all designed to mess with your perception of reality. What’s even more interesting is that optical illusions give us a glimpse into how our brain processes what we see.

They can’t possibly be of the same color, can they ... to see this particular experiment as well as some other cool optical illusions. As Bite Size Psych explains, the hearts seem purple ...