How Optical Illusions Work

TED-Ed educator Nathan S. Jacob explains how optical illusions manage to trick our brains into thinking we’re seeing something we’re actually not.

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.