Negative Afterimage Illusion

Instructions

1. Find a white surface to look at, for example a piece of paper or a white wall.

2. Stare at the centre of this image and count to 30. Don't look away.

3. Quickly look at your white surface (try blinking quickly!).

TIP: This illusion works better if you’re closer to the screen.

What do you see?

_{Image credit: Amy Winehouse, Afterimage, digital drawing by Dimitri Parant is licensed under CC BY-SA 2.0}