Café Wall illusion
Access since May 26, 2007
"Café Wall spirals, a 2011 remake of the 2005 version"
Concentric gray rings appear to form spirals.
Copyright Akiyoshi Kitaoka 2011 (March 1)
"Café Wall wave"
Vertically and horizontally aligned gray lines appear to be wavy.
Copyright Akiyoshi Kitaoka 2011 (February 1)
"Café Wall bulge"
Vertically and horizontally aligned gray lines appear to bulge out.
Copyright Akiyoshi Kitaoka 2011 (February 1)
"Café Wall motion"
The inset appears to move. Vertically and horizontally aligned gray lines appear to tilt.
Copyright Akiyoshi Kitaoka 2011 (February 1)
"Café Wall spirals 2011"
Concentric gray rings appear to form spirals.
Copyright Akiyoshi Kitaoka 2011 (February 2)
"Café Wall spirals 2011, ver. 2"
Concentric gray rings appear to form spirals.
Copyright Akiyoshi Kitaoka 2011 (February 1)
"Café Wall wave 2"
Blocks appear to sway laterally.
Copyright Akiyoshi Kitaoka 2011 (February 1)
A basic image of the Café Wall illusion
The gray line appears to tilt down to the left, though it is horizontal.
Münsterberg illusion
white version
"Black diamond"
Vertical or horizontal gray lines appear to be distorted.
Copyright A.Kitaoka 1999
"Knitting"
The arrays appear to move.
Copyright A.Kitaoka 2002
"Moving tiles"
The inset appears to move. This figure consists of squares.
Copyright A.Kitaoka 2002
"Fish"
Gray lines are vertical and parallel but appear to tilt alternately. Moreover, fish appear to move vertically.
Copyright A.Kitaoka 2003
a remake April 10, 2009
Cafe Wall spirals
References
Fraser, J. (1908) A new visual illusion of direction. British Journal of Psychology, 2, 307-320.
Gregory, R. L. and Heard, P. (1979) Border locking and the Café Wall illusion. Perception, 8, 365-380.
Kitaoka, A. (1998). Apparent contraction of edge angles. Perception, 27, 1209-1219. 
Kitaoka, A., Pinna, B., and Brelstaff, G. (2004). Contrast polarities determine
the direction of Café Wall tilts. Perception, 33, 11-20.
Kitaoka, A. (2007) Tilt illusions after Oyama
(1960): A review. Japanese Psychological Research, 49, 7-19. PDF
request to me
McCourt, M. E. (1983) Brightness induction and the Cafe Wall illusion. Perception, 12, 131-142.
Morgan, M. J. and Moulden, B. (1986) The Munsterberg figure and twisted cords. Vision Research, 26, 1793-1800.
Moulden, B. and Renshaw, J. (1979) The Munsterberg illusion and 'irradiation'. Perception, 8, 275-301.
Münsterberg, H. (1897) Die vershobene Schachbrettfigur. Zeitschrift für Psychologie, 15, 184-188.
Copyright Akiyoshi Kitaoka 2011 (July 6)
cf.
"Frog egg wave"
Vertically and horizontally aligned dots appear to be wavy.
Copyright Akiyoshi Kitaoka 2011 (February 1)
