Spiral illusion 6

since March 10, 2009



"The spiral illusion of the pseudo-Fraser illusion"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 11)

Thanks to Sam

"Psudo-Fraser illusion"



"The spiral illusion of the psudo-Fraser Café Wall illusion"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 11)

"Psudo-Fraser Café Wall illusion"



"The spiral illusion of the illusion of shifted lines"
(Fraser-illusion like style)

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 8)

Illusion of shifted lines

Kitaoka, A. (2007) Tilt illusions after Oyama (1960): A review. Japanese Psychological Research, 49, 7-19 PDF



"The spiral illusion of the illusion of shifted lines (2)"
(Fraser-illusion like style)

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 11)

Illusion of shifted lines

Kitaoka, A. (2007) Tilt illusions after Oyama (1960): A review. Japanese Psychological Research, 49, 7-19 PDF



"The spiral illusion of the Fraser illusion with incomplete twisted cords"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 11)

Fraser Illusion with incomplete twisted cords



"The spiral illusion of the illusion of shifted edges"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 11)

Illusion of shifted egdes

Kitaoka, A. (2007) Tilt illusions after Oyama (1960): A review. Japanese Psychological Research, 49, 7-19 PDF



"The spiral illusion of the illusion of shifted edges 2"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2010 (January 11)

Illusion of shifted egdes

Kitaoka, A. (2007) Tilt illusions after Oyama (1960): A review. Japanese Psychological Research, 49, 7-19 PDF



"High Definition Television spirals"

Concentric rings appear to be distorted.

Copyright Akiyoshi Kitaoka 2009 (December 26)



"Diorama of railways"

Concentric rings appear to be distorted.

Copyright Akiyoshi Kitaoka 2009 (December 18)



"Wire entanglement"

Concentric rings appear to be distorted.

Copyright Akiyoshi Kitaoka 2009 (December 17)



"Pseudo Fraser spirals 2"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2009 (December 17)



"Red Fraser spiral"

Concentric rings appear to be a spiral. In addition. the image appears to rotate when observers approach or move away from the image fixing their eyes on the center.

Copyright Akiyoshi Kitaoka 2008 (November 20)

Rediscovered on June 6, 2009



"Water spirals"

Concentric rings appear to be spirals.

Copyright Akiyoshi Kitaoka 2009 (March 3)



Spiral illusion 5

Spiral illusion 4

Spiral illusion 3

Spiral illusion 2

Spiral illusion 1


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