stepping feet illusion
Definitions
An optical illusion of motion perception involving two "buses" (rectangles), one blue and one yellow, moving horizontally across a "street" of black and white stripes. Although both buses move at a constant speed, their perceived speed varies dramatically, because of differing contrast levels.
CEFR level
C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
This word is part of the CEFR C1 vocabulary — advanced level.
See also
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