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Short- and long-range processes in visual apparent movement

Short- and long-range processes in visual apparent movement The minimum stimulus-onset asynchrony required for perception of beta apparent movement was measured with point stimuli separated by visual angles ranging from about 0.1· to 5· and viewing distance as a parameter. For each viewing distance, the threshold for beta movement was a monotonic function of the visual angle with a strong linear increase over angles less than 0.25· (short-range function) and a much weaker linear increase over angles greater than 1.5· (long-range). The short- and long-range functions were differentially affected by increase in viewing distance: the long-range function increased in slope, but the extrapolated zero-intercept was constant; the short-range function changed in intercept, but not in slope. The results provide strong evidence for separate short- and long-range processes in visual motion perception. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Psychological Research Springer Journals

Short- and long-range processes in visual apparent movement

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References (50)

Publisher
Springer Journals
Copyright
Copyright © 1983 by Springer-Verlag
Subject
Psychology; Psychology Research
ISSN
0340-0727
eISSN
1430-2772
DOI
10.1007/BF00309348
Publisher site
See Article on Publisher Site

Abstract

The minimum stimulus-onset asynchrony required for perception of beta apparent movement was measured with point stimuli separated by visual angles ranging from about 0.1· to 5· and viewing distance as a parameter. For each viewing distance, the threshold for beta movement was a monotonic function of the visual angle with a strong linear increase over angles less than 0.25· (short-range function) and a much weaker linear increase over angles greater than 1.5· (long-range). The short- and long-range functions were differentially affected by increase in viewing distance: the long-range function increased in slope, but the extrapolated zero-intercept was constant; the short-range function changed in intercept, but not in slope. The results provide strong evidence for separate short- and long-range processes in visual motion perception.

Journal

Psychological Research – Springer Journals

Published: Aug 24, 2004

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