View full lesson: http://ed.ted.com/lessons/how-optical-illusions-trick-your-brain-nathan-s-jacobs
Optical illusions are pictures that appear to trick our minds into seeing one thing completely different from what they really are. But how do they work? Nathan S. Jacobs walks us via just a few widespread optical illusions and explains what these tips of the attention can inform us about how our brains assemble visible info into the 3D world we see round us.
Lesson by Nathan S. Jacobs, animation by TED-Ed.