Thompson's Margaret Thatcher illusion: when inversion fails.
It is argued that the whole face is more dominant than the individual features. In the case of a jumbled face the external pattern is dominant when a face is upright, whereas the internal pattern is dominant when a face is inverted.
Rakover
S S
SS
Department of Psychology, University of Haifa, Israel. rakover@psy.haifa.ac.il
D005145:Face; D006801:Humans; D009903:Optical Illusions; D011581:Psychological Tests