We’ve all been there staring at an image, thinking we know exactly what we’re looking at, only to realise a moment later that we’ve been tricked. It’s the kind of thing that makes you stop for a ...

Optical illusions mess with our eyes - and brains - in the weirdest ways. Looking at one usually makes us perceive something that isn't really there. Take the Kanizsa square, a visual featuring four ...

Ever see something that isn't really there? Could your mind be playing tricks on you? The "tricks" might be your brain reacting to feedback between neurons in different parts of the visual system, ...

Learn how the brain handles certain optical illusions, causing us to perceive shapes that don't actually exist. Optical illusions mess with our eyes — and brains — in the weirdest ways. Looking at one ...