Please use this identifier to cite or link to this item: https://doi.org/10.1371/journal.pone.0006771
Title: An empirical explanation of the speed-distance effect
Authors: Wojtach W.T.
Sung K.
Purves D. 
Keywords: adult
aged
article
distance perception
female
human
human experiment
male
movement perception
normal human
probability
stimulus response
velocity
virtual reality
visual stimulation
empirical research
psychophysics
Empirical Research
Humans
Motion Perception
Probability
Psychophysics
Issue Date: 2009
Citation: Wojtach W.T., Sung K., Purves D. (2009). An empirical explanation of the speed-distance effect. PLoS ONE 4 (8) : e6771. ScholarBank@NUS Repository. https://doi.org/10.1371/journal.pone.0006771
Rights: Attribution 4.0 International
Abstract: Understanding motion perception continues to be the subject of much debate, a central challenge being to account for why the speeds and directions seen accord with neither the physical movements of objects nor their projected movements on the retina. Here we investigate the varied perceptions of speed that occur when stimuli moving across the retina traverse different projected distances (the speed-distance effect). By analyzing a database of moving objects projected onto an image plane we show that this phenomenology can be quantitatively accounted for by the frequency of occurrence of image speeds generated by perspective transformation. These results indicate that speed-distance effects are determined empirically from accumulated past experience with the relationship between image speeds and moving objects. � 2009 Wojtach et al.
Source Title: PLoS ONE
URI: https://scholarbank.nus.edu.sg/handle/10635/161831
ISSN: 19326203
DOI: 10.1371/journal.pone.0006771
Rights: Attribution 4.0 International
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