Stroboscopic motion is its simpler form. Commonly produced by successively turning on and off two separated stationary light sources; as the first is turned off and the second turned on, the subject perceives a spot of light moving from the position of the first to that of the second. See also stroboscopic motion.

The phi phenomenon is a perceptual illusion described by Max Wertheimer in his 1912 Experimental Studies on the Seeing of Motion, in which a disembodied perception of motion is produced by a succession of still images. In discussions of the perception of film and video it is often confused with beta movement, but it is a distinct phenomenon not directly involved in the perception of motion pictures.