According to new atlas report, when you look at this picture below, do you feel that the black smear in the middle is expanding** If so, it means that you are like most people - your brain may even think you are entering a tunnel and adjust your eyes accordingly.
As part of a new study led by Professor Bruno Laeng of the University of Oslo, a total of 50 adult subjects with normal vision (31 women and 19 men) were asked to observe the newly developed "expanding hole" visual illusion.
They looked at 26 versions in different smear / dot color combinations. The simple combination shown here -- black smudges and dots on a white background -- produced the strongest response, with about 86% of participants reporting feeling that the hole was expanding.
More importantly, people have found that the stronger the perception of reports, the pupils of people will unconsciously enlarge when watching hallucinations. This shows that their brains are responding, as if these people were really entering a dark tunnel, and their pupils were opened wider to absorb more light.
Laeng said: "here, based on the new 'enlarged hole' illusion, we show that the pupil responds to how we perceive light - even if this' light 'is imaginary as in the illusion - and not just to the amount of light energy actually entering the eye. The' enlarged hole 'illusion causes the pupil to dilate accordingly, which will happen if the darkness really increases."
Now, it is hoped that these findings will enable us to better understand the way our visual system understands the world around us.
A paper on this research was recently published in frontiers of human neuroscience 》In magazines. Professor Akiyoshi Kitaoka from Ritsumeikan University in Japan and Shoaib Nabil, a doctoral student from the University of Sussex in the UK, also participated in the study.