Show Summary Details

Page of

PRINTED FROM OXFORD REFERENCE (www.oxfordreference.com). (c) Copyright Oxford University Press, 2013. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use (for details see Privacy Policy and Legal Notice).

date: 26 September 2018

persistence of vision

Source:
A Dictionary of Media and Communication
Author(s):

Daniel Chandler,

Rod Munday

persistence of vision 

1. A discredited theory explaining the perception of motion pictures which assumes that an impression of the visual field (known as an after-image) either remains on the retina of the eye or is stored by the brain for approximately one twenty-fifth of a second before it decays and is supplanted by the next impression: see also apparent motion; flicker fusion; iconic memory; compare beta movement; phi phenomenon.

2. A smear effect that is the basis of the impact of firework displays and is produced by the dark-adapted eye, which compensates for low light levels by retaining light information over a short period of time. In conditions of bright ambient illumination this effect is lost.