Illusory motion

The term illusory motion, also known as motion illusion or "apparent motion", is an optical illusion in which a static image appears to be moving due to the cognitive effects of interacting color contrasts, object shapes, and position. The stoboscopic animation effect is the most common type of illusory motion and is perceived when images are displayed in fast succession , as occurs in movies. The concept of illusory motion was allegedly first described by Aristotle. Types of illusory motion Induced movement works by moving the background around a fixed object. Films such as Airplane! and Top Secret! use a fixed prop and move the background props to give the effect of induced motion. Motion aftereffect occurs when one views moving stimuli for an extended period of time and then focus on a stationary object. The object will appear to move in the opposite direction of the moving stimuli....