Look closer this black hole is about to swallow you.😮
in front of the test subjects and tracked the movement of their eyes. The pupil was found to be dilating when the eyes focused on the black hole image. Also, over 86 percent of subjects felt the illusion most captivating when the color scheme was black.
However, when different colors of holes were used, about 20 percent of individuals couldn’t perceive the illusion. Interestingly, when the subjects were shown white-colored holes instead of black, their pupils underwent contraction. Moreover, during the experiments, the researchers didn’t change the external light settings, but theThese findings suggest that the pupil in our eye reacts to light and explains how we perceive it.
The expanding hole image makes the eyes feel like the black hole in the image is growing and darkness is increasing in the surrounding. Thismakes the pupil expand, whereas no light-related change has occurred in reality. According to the researchers, pupil dilation might also be a result of our brain predicting a future image as"an illusory expansion” of the large black hole region in the original image.
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