Usseewa illusion
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Usseewa illusion[1] shows that the letter rows appear to be slightly higher on one side than on the other when they are aligned horizontally behind the oblique contour object.
This illusion can be explained by considering it as a Poggendorff illusion, which is tilted diagonally at about 30˚.
The horizontal line of letters corresponds to the oblique line of the Poggendorff illusion, and the oblique line of the foreground object corresponds to the illusion’s vertical line.
This illusion suggests that visual corrections may be required when using such compositions, as they are likely to be used in station and train advertisements.
The name “Usseewa illusion” is an acronym for “Using Slanted Shapes to Effect the Elevation of Words’ Alignment illusion” and is named after recent Japanese popular song “Usseewa”.
References[edit]
- ↑ Akiyoshi, Kitaoka (22 February 2021). "Illusion designs". Unknown parameter
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