Illusion using movies #5

since July 4, 2008

Warning: This page includes real animations. Please do not keep watching them for a long time. Although this page has carefully avoided the known harmful stimuli, unknown ones might happen to be included. Never copy them.



"Peach loop tunnels"

The outer ring appears to rotate clockwise while the inner one counterclockwise. When the outer ring disappears, it appears to rotate clockwise. When it emerges, it appears to rotate counterclockwise. There are many individual differences in these pieces of observation.

Copyright Akiyoshi .Kitaoka 2008 (July 22)



"Apple loop tunnels"

The inner ring appears to rotate counterlockwise after the offset.When it emerges, it appears to rotate clockwise. There are many individual differences in these pieces of observation.

Copyright Akiyoshi .Kitaoka 2008 (July 22)



"Peach spiral rotation"

The rings appear to rotate counterclockwise when they disappear.

Copyright Akiyoshi .Kitaoka 2008 (July 23)



"Toothed wheels"

Rings appear to rotate a little when the background color changes from red to blue.

Copyright Akiyoshi .Kitaoka 2008 (July 23)



"Kinkaku jitter illusion"

Kinkaku appears to move when observers fix their eyes on some point and the image gets stationary. This effect is called 'visual jitter' (Murakami and Cavanagh, 1998, 2001).

Copyright Akiyoshi .Kitaoka 2008 (July 21)

References

Murakami, I. & Cavanagh, P. (1998). A jitter after-effect reveals motion-based stabilization of vision. Nature, 395, 798-801.

Murakami, I. & Cavanagh, P. (2001). Visual jitter: evidence for visual-motion-based compensation of retinal slip due to small eye movements. Vision Research, 41, 173-186.




The movie shown below gives the same effect with less strength.




"Obake with obake"*

*Obake = phantom; motion line

A phantom appears to move quickly.

Copyright Akiyoshi .Kitaoka 2008 (July 21)



"Obake without obake"




"Obake without obake 2"




"Ant lion explosion"

The image appears to explode just when it disappears*.

Copyright Akiyoshi Kitaoka 2008 (July 9)

*probably a variant of the "gradient-offset induced motion" (Hsieh et al., 2006)

Hsieh, P.-J., Caplovitz, G.P., and Tse, P.U. (2006) Illusory motion induced by the offset of stationary luminance-defined gradients. Vision Research, 46, 970-978.


"Butterfly: an animation"

Wings appear to expand. The image appears to contract when it disappears*.

Copyright Akiyoshi Kitaoka 2008 (July 4)

*probably a variant of the "gradient-offset induced motion" (Hsieh et al., 2006)

Hsieh, P.-J., Caplovitz, G.P., and Tse, P.U. (2006) Illusory motion induced by the offset of stationary luminance-defined gradients. Vision Research, 46, 970-978.


Movie illusion 4

Movie illusion 3

Movie illusion 2

Movie illusion


(line-motion illusion)


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