More than an illusion - this photo gives you an unexpected benefit

I can't believe a familiar visual illusion has such a secret. Moreover, it has only recently been discovered.

We have known many types of visual illusions, and one of the most classic hallucinations is the following.

Illusion after motion.

This is an example of the "post-motion" illusion effect (motion aftereffect) . This illusion makes the images after observing the image also tend to move similarly.

It is known that the "post-motion" illusion is the first form of visual illusion discovered by humans. However, until today science has realized its potential benefits, which are to help people improve their vision.

Accordingly, experts from the University of York and Glasgow said that when under the influence of hallucinations "enlarging after motion" (expanding motion aftereffect), the images later became larger. The illusionist will be able to read the micro-size letters that were previously unreadable.

Specifically, the expert group hypothesized that the observable human images depend not only on the eyes, but also on the ability of the brain to process. And they tested this ability with an eye patch that is usually located in clinics.

The ophthalmic table is usually located at the clinic.

The experiment takes place as follows: candidates will look at the dynamic image within 30 seconds - this is just enough time for visual illusion to be activated. Then, they will quickly turn to the eye chart and compare how small the font size they can read (if you want, you can also try it at home).

As a result, candidates can read at least 2 levels less than before being influenced by visual illusion.

"If the vision before being affected is less, the benefits of this illusion become even stronger" - said Dr. Rob Jenkins, research director.

"And vice versa, if your vision is inherently excellent, this illusion will not support much."

However, this effect only exists for 10s - 20s. But anyway, this is one of the quite effective methods for you to train your eyes. Moreover, it also contains a great potential for exploitation for science in the future.

Why do moving images cause hallucinations?

The brain has an area called the visual cortex - responsible for processing information from the eye, helping us to recognize things around us.

This illusion helps people improve their vision.

This work is quite complicated, so the visual cortex has 280 million neurons. In it, there is a group of cells specialized in handling moving images.

When observing still images, all moving cells will be kept low, making us identify the standing object. But when looking at the movement, these cells will work very actively to process information.

Therefore, after only a short period of time, these cells begin to run out of energy, in other words, our brain will become tired. However, some types of cells will tire faster (depending on the direction of the circle's movement).

The difference in energy consumption between different types of cells is the cause of this visual illusion.