Motion-induced blindness
Optical illusion / From Wikipedia, the free encyclopedia
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Motion Induced Blindness (MIB), also known as Bonneh's illusion is a visual illusion in which a large, continuously moving pattern erases from perception some small, continuously presented, stationary dots when one looks steadily at the center of the display. It was discovered by Bonneh, Cooperman, and Sagi (2001), who used a swarm of blue dots moving on a virtual sphere as the larger pattern and three small yellow dots as the smaller pattern. They found that after about 10 seconds, one or more of the dots disappeared for brief, random times.[2]
The illustrated version is a reproduction of an MIB display used by Michael Bach (2002).[3] Bach replaced the 3D swarm of blue dots with a flat, rotating matrix of blue crosses and added a central, green, flashing dot for people to keep their eyes on. This produces robust disappearances of the yellow dots.
Bonnh et al. attributed the causes of the illusion to attentional mechanisms, arguing that the visual system operates in a winner-takes-all manner.[2]