This optical illusion, new to the scientific world, seems to bring unthinkable results. It even causes changes at the physiological level that have not been remotely anticipated.
Look at this picture. Do you feel the central black hole expanding like moving into a dark environment or falling into a hole? If yes, you are not alone. About 86% of people In fact, he had the same feeling as you. But why?
dr Bruno Laeng, professor at the Department of Psychology at the University of Oslo, said: “The expanding hole is a highly dynamic illusion: the circular spot and shadow gradient of the central black hole give a clear impression of optical flow, as if the observer were moving into it a hole or tunnel forward”.
The study, published in Frontiers, shows how the illusion is so powerful that it creates a true reflection, causing the pupils to dilate, as if more light should actually enter after moving toward a dark area. Such a reflection therefore it depends on perception and not necessarily on reality.
Colored variations of the illusion were projected onto a screen, and 50 male and female participants were asked to rate how strongly they perceived the impact of the images. Meanwhile, the researchers measured and studied eye movements.
The results show how it was The black hole illusion is much more effective (in contrast to the blue dots), while with other colors the pupil is even more likely to shrink. It also seems to be a minority totally immune, perceive no effect. Scientists still cannot explain this “resistance”, which opens up new interesting future research.
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