Final answer:
The perception of movement as a result of alternating signals appearing in rapid succession is known as phi phenomenon.
Step-by-step explanation:
The perception of movement as a result of alternating signals appearing in rapid succession is called phi phenomenon. It is a type of optical illusion where visual stimuli, such as a series of still images presented in quick succession, create the perception of continuous motion. One example of the phi phenomenon is the appearance of movement in a flipbook or a strobe light.