VISUAL ILLUSIONS

 

PERCEPTUAL STABILIZATION

Stare at the display on the left for several minutes. You will see spontaneous perceptual reversals in the sphere’s rotation.

Now look away for a second and look back repeatedly. Surprisingly, this will prevent any further perceptual changes from happening.


Maier et al. (2003)

Perception of temporally interleaved ambiguous patterns.

Curr. Biol. 13:1076-1085

GLOBAL PATTERN RIVALRY

Fixate on the center of the grid for some minutes. You will perceive spontaneous alternations in which either the horizontal or vertical lines fade from your view. Note that the center does not get spared from the illusion. The longer you stare, the more striking the effect.


Maier et al. (2005)

Global competition dictates local suppression in pattern rivalry.

Journal of Vision 5(9):668-677