Illusion of Face 6

since August 16, 2009


"Nimaijita"

Nimaijita = Double tongue

Doubled tongues appear to swing.

Copyright Akiyoshi Kitaoka 2009 (December 12)



"Knocked-face illusion using henohenomoheji"

A henohenomoheji face also gives the knocked-face illusion.

Copyright Akiyoshi Kitaoka 2009 (November 24)


Henohenomoheji is a face made up of Japanese letters he (へ), no (の), mo (も)and ji (じ).

   へ  へ
   の  の
   の  の
    も
    へ
    へ

              へ    へ
              のの  のの
                もも
                へへ



"Knocked-ear illusion 2"

Doubled ears appear to be unstable.

Copyright Akiyoshi Kitaoka 2009 (September 6)



"Rotating eye size illusion"

The left eye appears to larger than the right one, though they are the same size. In addition, the mouth appears to be smaller than each eye, though they are the same size.

Copyright Akiyoshi Kitaoka 2009 (September 6)



"Horizontal knocked-face illusion"

Laterally doubled eyes, noses and mouths render a horizontal double-vision appearance.

Copyright Akiyoshi Kitaoka 2009 (August 25)

cf. illusion of double vision

This study was supported by a Grant-in-Aid for Scientific Research on Innovative Areas, "Face perception and recognition", by the Ministry of Education, Culture, Sports, Science and Technology, Japan.



"Eye size illusion"

The left eye appears to larger than the right one, though they are the same size.

Copyright Akiyoshi Kitaoka 2009 (August 15)

The right eye appears to larger than the left one, though they are the same size. These eyes are the same as those in the image above.


"An illustration of the bloodshot illusion 3"

The luminance-induced gaze shift or the bloodshot illusion (Ando, 2002). Although the position of the iris and pupil in each eye's contour is the same among the three images, the apparent direction of gaze is shifted to the darkening part of the sclera (the white of the eye).

Copyright Akiyoshi Kitaoka 2009 (August176)

Ando, S. (2002). Luminance-induced shift in the apparent direction of gaze. Perception, 31, 657-674.


"Pupil illusion"

Although the position of the iris in each eye's contour is the same among the three images, the apparent direction of gaze tends to be shifted to the positional bias of the pupil.

Copyright Akiyoshi Kitaoka 2009 (August 16)


"Purkinje-Sanson image illusion 2"

Although the position of the iris and pupil in each eye's contour is the same among the three images, the apparent direction of gaze tends to be shifted to the positional bias of the Purkinje-Sanson image, the bright spot shown on the iris (actually on the surface of the cornea).

Copyright Akiyoshi Kitaoka 2009 (August 16)


"Longitudinal Wollaston illusion 4"

The left face appears to gaze at us while the right one appears to see upward, though the eyes are the same shape and size.

Copyright Akiyoshi Kitaoka 2009 (August 16)



"Overestimation of the eye size and mouth size at lower parts of a face"

Eyes and the mouth appear to be larger when they are drawn at lower parts of a face.

Copyright Akiyoshi Kitaoka 2009 (August 16)


Illusion of face 5

Illusion of face 4

Illusion of face 3

Illusion of face 2

Illusion of face


Akiyoshi's illusion pages