Experience the world's most powerful visual illusion

There are countless visual illusions that make objects seem to spin, change colors and move in their own way, but below can be the most powerful visual illusion, with enough effects to make Many people do not dare to see it completely from beginning to end.

The video created the so-called "motion aftershock" (MAE) , a phenomenon often referred to as "waterfall illusion" after being discovered at a waterfall in Foyers, Scotland in 1834.

MAE hallucinations make cells in the brain sensitive to a certain direction of movement until they become tired, then activate those brain cells to respond to the opposite direction. This makes the objects stand still as if moving.

The visual illusion itself is not new. It is mentioned for the first time in ancient Greek texts, although researchers are still debating its origin.

Many scholars agree that Greek scientist and philosopher Aristotle was the first to mention the visual illusion MAE in his Parva Naturalia. However, others are assertive, the Roman philosopher Lucretius is the first to mention it in his poem De Rerum Natura.

The best description of the "motion aftershock" effect recorded by Jan Evangelista Purkyně in 1820, after observing this illusion while watching the cavalry march. Robert Addams later observed the same effect in 1834 while watching a waterfall in Foyers, Scotland.

According to experts, MAE hallucinations can be explained by changes in the optic nerve cells, responding in certain ways to the parts moving inside an image.

In the brain, many cells are regulated to respond to certain characteristics and directions of an image or stimulation. For example, in the brain there are many cells sensitive to the clockwise movement, but there are also cells sensitive to moving in the opposite direction (counterclockwise).

When there is no movement inside an image, these cells almost make the same reaction.

However, in the case of a simple MAE illusion, such as circles turning clockwise, cells sensitive to that direction use energy and become exhausted.

When the rotation stops, cells sensitive to movement in a counterclockwise direction will take over and actively work, in an attempt to restore balance. That makes standing objects look like they are moving in the opposite direction, counterclockwise for a short time.

In the case of the video posted by Science Forum, focusing on the letters makes the cells adjust to motion. Numerous movements in the video make the cells exhausted at different speeds and the length of the combined video creates hallucinations that make objects seem to move in a multitude of directions.

Reference: Daily Mail.