Bergen's illusion (Bergen grid illusion)
since March 4, 2005
Although the scintillating grid illusion is familiar with the recent paper of Schrauf et al (1997)1), there was actually the earlier image before them. It is Bergen's figure, which was presented in ARVO in 19852).
1)Schrauf, M., Lingelbach, B., Wist, E.R. (1997) The scintillating grid illusion. Vision Research, 37, 1033-1038.
2)Bergen, J. R. (1985). Hermann's grid: new and improved (abstract). Investigative Ophthalmology and Visual Science (Supplement), 26, 280.
The image shown above is a variation of the Bergen illusion, where illusory black dots appear to scintillate in white patches.
(produced by Akiyoshi Kitaoka, June 6, 2008)
The image shown above is a variation of the Bergen illusion, where illusory black dots appear to scintillate in white patches.
(produced by Akiyoshi Kitaoka, March 4, 2005)
The image shown above is a variation of the Bergen illusion, too.
(produced by Akiyoshi Kitaoka, March 4, 2005)
The image before being blurred
(produced by Akiyoshi Kitaoka, March 4, 2005)
Too much blurr reduces illusion.
(produced by Akiyoshi Kitaoka, March 4, 2005)
Bergen's illusion for wallpaper
(produced by Akiyoshi Kitaoka, March 5, 2005)
A small figure of the Bergen illusion, which looks like the scintillating grid illusion
(produced by Akiyoshi Kitaoka, March 5, 2005)
The original one
(courtesy of Ted Adelson, March 3, 2005)
Thanks to Don and Ted
