Optical illusions and other visual tests have been around for as long as humans can describe what they see. Our brains must quickly process what our eyes see in milliseconds, but sometimes, the brain can misinterpret the information it gets from the eyes, such as depth, color, movement, and shape. But this gave rise to the variety of optical illusions we know today, which scientists study to learn how the human brain processes visual information.
How sharp are your eyes? Take this quiz to find out how good you are at spotting the illusions and discovering the trick your brain is playing on you!
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