Most people think that optical illusions show us a way that our brain is failing us. But in reality, optical illusions are a great way to reveal the powerful mechanisms that allow your brain to perceive 3-D. So get ready to have your eyes and brain messed with.
Take the challenge and fight out how much of your perception is just a trick of the brain. Here’s question one, click over to answer all three questions!
Complete all 12 episode challenges to reveal your total brain profile.