PPT Slide
- “moving” pictures are actually a series of projected still shots interrupted by bursts of black. During a film the screen is dark almost half of the time.
- One theoretical explanation for this phenomenon is persistence of vision--the tendency of a image to linger on a person’s retina.
- A more recent theory points to a combination of critical flicker fusion-the inability of the human eye to distinguish flashes at about 50/second and apparent motion-the human visual system’s tendency to interpret motion from certain related stimuli.