Ninio's Extinction Illusion 3/52


52 weeks 52 different Optical Illusions

I love optical illusions so i thought i would share a few of my favorite and with many people opting to take up 365 day challenges i thought i would try a 52 week challenge in which i will share with you a different Illusion every week. so if you have any you would like me to feature get in touch.

Week 3

Ninio's Extinction Illusion

This illusion shows 12 black dots on a gray-and-white grid. However, it is impossible to see all 12 dots at once. If the grid wasn't in the picture, people could see all 12 dots. French scientist and visual perception specialist Jacques Ninio created the illusion in 2000 and published a detailed study explaining how it tricks the mind.

"When the white disks in a scintillating grid are reduced in size, and outlined in black, they tend to disappear," wrote Ninio. "One sees only a few of them at a time, in clusters which move erratically on the page. Where they are not seen, the gray alleys seem to be continuous, generating gray crossings that are not actually present."

This illusion is a prime example of how only see certain things in the center of our vision. Our brain compensates for things we can't see. Therefore, viewers know there are 12 dots in total on the grid but visually only see a few at a time.

This illusion is a variation on the Hermann Grid, which has sort of the opposite effect of the Ninio's Extinction Illusion. In the Hermann Grid, all of the dots are white, but some appear black based on where your eyes travel.


What are the best optical illusions you've found on the web? Do you have more amazing examples you don't see here?

Share your thoughts with us in the comments section below.