Effect of signal intensity on perceived speed
Date
2006
Authors
Edwards, Mark
Grainger, Leslie
Journal Title
Journal ISSN
Volume Title
Publisher
Pergamon-Elsevier Ltd
Abstract
The effect of signal intensity (proportion of dots moving in the same direction compared to noise dots that move in random directions) on perceived speed was investigated. It was found that increasing signal level decreased the perceived speed of the stimulus. This finding indicates that global-motion pooling processes play a role in the extraction of speed information. It is suggested that the amount of relative motion in the stimulus influences perceived speed, with perceived speed increasing with increasing relative motion. The results are discussed in relation to the notion that speed and direction are processed, at least in part, differently.
Description
Keywords
Keywords: article; controlled study; human; human experiment; motion; priority journal; signal detection; signal noise ratio; stimulus response; vision; visual stimulation; Humans; Motion Perception; Pattern Recognition, Visual; Photic Stimulation; Psychometrics; P Motion pooling; Perceived speed; Signal level
Citation
Collections
Source
Vision Research
Type
Journal article
Book Title
Entity type
Access Statement
License Rights
Restricted until
2037-12-31