Persistence of Vision - M1

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Jacques Harris - Persistence of Vision

Persistence of Vision

Persistence of vision is a theory in which when we show a number of images together within a short time period, it gives the illusion that the images are moving. Because our brain can only process a certain amount of information at any given time, when images are shown in a quick succession, we see it as if it's moving.

In films, the frames per second are in the thousands, which in turn make the movie incredibly smooth. The minimum amount of frames per second humans need in order to define the images as a movie is 24. Although the movie won't be as smooth as it could, we still will consider it a movie or animation.

The theory was debunked in 1921 and to this day has never been proven properly.

There are other theories, for example, some scientists believe that it's caused by the Beta Movement, which is the brain assuming that there's movement when images are shown quickly one after another.

Another theory is that when we see images in a quick succession, the brain remembers the last image for a very short time, meaning that we see all the images smoothly without jumps.