Applied illusionology

Access since August 11, 2004

"Brain washing"

Coasters appear to rotate.

Copyright Akiyoshi Kitaoka 2009 (July 7)

"Rotating coasters 3"

Coasters appear to rotate.

Copyright Akiyoshi Kitaoka 2009 (June 22)

"Rotating coasters 2"

Coasters appear to rotate.

Copyright Akiyoshi Kitaoka 2009 (June 22)

"Rotating snake coasters"

Coasters appear to rotate.

Copyright Akiyoshi Kitaoka 2009 (June 22)

"Eye color constancy signal"

The right eye appears to be cyan in the left panel, yellow in the middle panel, and red in the right panel, though in each panel the right eye is the same color as the left one.

Copyright Akiyoshi Kitaoka 2009 (June 14)

(The green signal is greenish cyan in Japan)

"Zöllner illusion-dependent slope illusion"

The road appears to ascend a bit in the upper-left image while it appears to descend a little in the lower-left image.

Copyright Akiyoshi Kitaoka 2008 (June 30)


Tsuinashi, S. (2008) Visual illusion of a vertical gradient: A pitched visual environment and a pitched floor. Japanese Journal of Psychology, 79, 125-133 (in Japanese).

"Illusory security lights"

Dots appear to scintillate.

Copyright Akiyoshi Kitaoka 2008 (April 28)


Ninio, J. & Stevens, K. A. (2000). Variations on the Hermann grid: an extinction illusion. Perception, 29, 1209-1217.

Schrauf, M., Lingelbach, B., Wist, E.R. (1997) The scintillating grid illusion. Vision Research, 37, 1033-1038.

"A girl of blue eyes 2"

Anomalous motion illusion is given to eyes, cheeks and hair, which will give a sense of being alive... (though I am afraid that the illusions are too weak for the expected effect)

Copyright Akiyoshi .Kitaoka 2006 (February 27)

A girl of blue eyes 3

The reason why false eyelashes enhance the attractiveness might depend on the Hering illusion that gives curved appearance to the upper or lower eyelines and renders a 3D impression.

July 10, 2004

If someone has already reported this idea, please let me know.


<February 22, 2010>

Application of the wave illusion of the peripheral drift illusion to the flag that the Apollo 11 carries to the moon. Should the flag flutter on the surface of the moon, NASA could say "It is not a trick but an illusion".

Problems: The development of this design was a little bit (35 years) behind the mission.

Story: Seiichi Tsuinashi

May 1, 2004

Application of the peripheral drift illusion to wheels of a bicycle. The wheels appear to rotate, so it might be possible that the bicycle can be driven with more ease.

Problems: The driver cannot see this effect.

March 19, 2004

Application of neon color spreading to spokes of a bicycle. The red crosses appear to shine when the wheel rotates. This effect can increase the visibility of the bicycle.

Problems: This effect cannot be seen in front of or behind the bicycle. The background should be brighter than the spokes.

January 9, 2004

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