Visual illusions offer a unique way to study how the brain processes what it sees. Even though the eyes may capture a scene accurately, the brain interprets that information in ways that can be ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

An example of the glare illusion used in the experiment. A previous study has reported that the central region surrounded by eight circles is perceived to be brighter in the left image (with a ...