Orbison illusion - Optical Illusions


Orbison illusion

The Orbison illusion is an optical illusion that was first described by the psychologist William Orbison in 1939. The bounding rectangle and inner square both appear distorted in the presence of the radiating lines. The backgrounds gives us the impression there is some sort of perspective. As a result, our brain sees the shape distorted. This is a variant of the Hering illusion and reminds of Wundt illusion.
Orbison illusion