An optical illusion that confuses most of us when we look at a developing black spot and know it is permanent.

According to new research, the image is completely static, but researchers say it gives people an “increased sense of darkness, like entering a space without light.”

According to a study published in Frontiers in Human Neuroscience, strategic advances may be the way our brains prepare us for changes in landscapes.

According to Science Alert, researchers believe that by anticipating the transition from light to dark, our visual system can quickly adapt to dangerous conditions.

“As light can be dazzling, it is dangerous to sink into the dark when navigating in the dark,” the researchers wrote in their new paper, “Like any myth, this hypothetical darkness is felt in the evaluation calculation because the observer does not move forward or enter the dark space when the observer actually moved into the dark space. The cost will be sharply lower. “

The first study attempted to analyze this optical illusion, how the color of the hole and the surrounding dots affect our mental and physical responses.

To do this, a group of 50 participants with normal vision presented “widening hole” images of different colors on a screen. In this range, mixed versions of illusions are shown without a pattern that can be identified by light or color.

The illusion of forward motion was most effective when the hole was black. When the hole was this shadow, 86% of the participants felt that darkness was going down on them.

When tracking the eye movements of the participants, it was found that the students developed unconsciousness when they saw the black hole. At the same time, if the fossa is white, the pupil will sway slightly.

“Based on the new ‘widening aperture’ myth, the student interacts with how we see light – even if that light is imaginary, as if it were an illusion – and not just the amount of light energy that actually enters a person’s eye,” says psychologist Bruno from the University of Oslo in Norway.

While this hole is a black hole, the researchers said they were not sure why 14% of the group did not see phantom expansion. But the power of the senses was different, even in those who recognized the illusion.

Pupil dilation or systole reversal is not a closed-loop mechanism like a photocell that opens a door, it does not penetrate into information other than the actual amount of light that excites the photoreceptor. Instead, the eye adapts not only to physical energy, but also to perceived and imagined light.

Instead of looking directly at the information presented in front of us, the visual neural network predicts how that information will change in the future, creating the imaginary ‘external expansion’ of the ‘central hole’.

If the brain does not do this, it will take more milliseconds for new visual information to reach higher brain processes.