Explained: How This Optical Illusion Fools Your Brain

The human brain is a pretty amazing tool. It’s capable of crazy things, but it is also possible to deceive your brain when you know how it works.

In this optical illusion, you just have to fix your eyes on the three small dots in the middle of the woman’s face (in the video above). Keep your focus on these bright spots in the photo for about thirty seconds, then look away. If you blink rapidly at a white surface, what do you see? The real image is revealed !

How does it work?

This optical illusion actually works because of the over-stimulation of the cells that make up the photoreceptors in your eyes. As soon as you look away, the brain will then interpret the signals it has received and compensate by inverting the colours, meaning the negative photo almost becomes a colour one.