🌀 Hypnotic Spiral
Experience the Motion Aftereffect! Stare at the red center point for 30 seconds, then look away at a wall or your hand.
🧠The Motion Aftereffect
Stare directly at the red dot for 30 seconds without blinking. Then, quickly look at the back of your hand. Your skin will appear to morph and crawl! This happens because the neurons in your eyes that detect motion get "tired", so when you look at a still object, the rested "opposite" motion neurons fire more strongly.