The Pulfrich effect

Ian P. Howard and Brian J. Rogers

in Perceiving in Depth

Published in print February 2012 | ISBN: 9780199764150
Published online May 2012 | e-ISBN: 9780199949366 | DOI:

Series: Oxford Psychology Series

The Pulfrich effect

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A swinging pendulum viewed with a dark filter before one eye appears to rotate in depth. This is known as the Pulfrich effect. The chapter starts with a description of the stimulus conditions that influence the Pulfrich effect. It goes on to discuss the theory that the effect is due to a difference in latency between the two eyes produced by the filter before one eye. There follows a review of the debate about whether the Pulfrich effect is due only to latency-induced spatial disparity or whether it is due also to temporal disparity between the images in the two eyes. The effects of dark adaption and eye movements on the Pulfrich effect are discussed. The chapter ends with a review of clinical applications of the Pulfrich effect.

Keywords: Pulfrich effect; visual latency; temporal disparity

Chapter.  16569 words.  Illustrated.

Subjects: Neuroscience

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