Motion & perception / 1977
Ouchi Illusion
A central checkerboard appears to float against its surroundings.
TRY THIS
Use the lower pattern. Shift your gaze across the checks or move the page slightly and watch the central region.
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The original uploader was RobinH at English Wikibooks.
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Download imageFrequently asked questions
What is Ouchi Illusion?
A central checkerboard appears to float against its surroundings.
What should I look for in Ouchi Illusion?
Use the lower pattern. Shift your gaze across the checks or move the page slightly and watch the central region.
What explains Ouchi Illusion?
The differently oriented checks can appear to slide relative to one another as the eyes move, despite the image being stationary.
Another way to see it
Explore this category
Peripheral drift
Jocelyn Faubert & Andrew M. Herbert
Still gradients seem to drift at the edge of vision.
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J. P. Guilford; investigated by Hans Wallach
Diagonal stripes move sideways but seem to travel upward.