The term "illusion" is derived from the Latin word "illudere," which means to mock or deceive. Therefore, the basic premise of an optical illusion is to fool the human brain by tricking it. Optical ...

Are you ready to test your observation skills? In today’s puzzle series, you can see an inverted 49-number series. With this Optical illusion, it will be a test of your vision, and within 7 seconds, ...

So I've read in more than a few places that color doesn't exist outside our heads, it's just wavelengths of light. That our brains are the things that make color, same with sound (which is just ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess ...

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 ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...