The Troxler effect is one of the most famous optical illusions that has been driving people crazy all over the world.

And how can it not be when it seems as if our eyes are betraying us because the image, if we look at it long enough, simply disappears.


The Troxler effect is an optical illusion that boils down to the following - if you focus on one point in an image, everything else around it, that is, what you capture with your peripheral vision, will simply fade completely.

For example, in this attached image - if you stare at the red dot in the center for 20 to 30 seconds, the blue circle around it will merge with the whiteness and disappear.

The effect is stronger if it's blurred out of your focus and further from the point you're focusing on, they write on the website moillusions.com.

The Troxler effect is named after the Swiss physician and philosopher Ignatius Paul Vital Troxler, who first noticed it in 1804. He then noticed that the brain stops paying attention to something we see that doesn't change. So, if a visual scene doesn't move, it's not interesting to the brain and it will ignore it, that is. fade away.

How it works?

https://twitter.com/AfroFlytina/status/1299200212750262272

Imagine placing a small piece of paper on the inside of your forearm. You will feel it for a few seconds, but after that the feeling will disappear because the tactile neurons have meanwhile adapted to the touch of the paper. And if you move your hand up and down, you will feel the paper again, until it falls.

It's similar to this optical illusion - our brain simply doesn't register what's unnecessary once we focus on what it cares about - in this case the red dot in the center.

So if they don't get any information from the periphery, that means if the blue circle doesn't move or change, the brain will wake it up. Everything stops when we close our eyes again, ie when the eyes are reactivated. /Telegraph/