TED-Ed

Nathan S. Jacobs: How optical illusions trick your brain (2014x94)

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Optical illusions are images that seem to trick our minds into seeing something different from what they actually are. But how do they work? Nathan S. Jacobs walks us through a few common optical illusions and explains what these tricks of the eye can tell us about how our brains assemble visual information into the 3D world we see around us. [Directed by TED-Ed, narrated by Addison Anderson].