OLogy: Optical Illusions and How They Work

What you see and what you think you see are different things. Find out what your brain doing behind-the-scenes!

Seeing is believing, right? Well, actually… What you see and what you think you see are different things. Your senses gather information and send it to your brain . But your brain does not simply receive this information—it creates your perception of the world. This means that sometimes your brain fills in gaps when there is incomplete information, or creates an image that isn’t even there!

Why does this happen? Evolution! Survival depends on fast reactions. Your brain has evolved to work quickly to piece together whatever bits and fragments it can get—and to do its best to figure out the rest.

Want proof of the work your brain is doing behind-the-scenes? Set your sights on some mind-bending optical illusions!


Anatomy & Physiology, Biology, Neuroscience, Optical Illusions
K-6

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OLogy (American Museum of Natural History)

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Online Interactive Activity

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