Briefly

The imaginary cube

The imaginary cube

Why do you see a cube in an image formed by circles separated from each other?

Surely by the law of "good continuity" described by the Gestalt psychological school (German word that means "configuration" or "organized totality") This branch of psychology holds that the totalities are prior, both in perception and behavior , to the parts that compose it. The law of good continuity tells us that: those elements that follow a straight line or smooth curve we identify as members in the same way, even if they remain separated from each other.

You will find other examples of this same illusion on the Illusionary page.