Effect of element size on stereoscopic apparent motion

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Abstract

Spatial displacement limits in stereoscopic (cyclopean) apparent motion were measured from sequentially presented two-frame random-depth configurations. Each depth configuration was defined by stereoscopically near or far elements of various sizes. The limits were compared with those in luminance-defined apparent motion. The subject's task was 2-alternative forced-choice of the perceived motion direction of the sequentially presented two-frame random-dot stereograms. The spatial displacement limit below which correct motion perception arose with stereoscopic configurations was larger in proportion to increases in size of elements. The values were almost consistent with those measured by luminance-defined configurations with the same element sizes. This result suggests that the strategy for discrimination of motion direction of random configurations is similar in both stereoscopic and luminance-defined apparent motion.

Original languageEnglish
Pages (from-to)1187-1193
Number of pages7
JournalPerceptual and motor skills
Volume96
Issue number3 II
Publication statusPublished - Jun 1 2003

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All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Sensory Systems

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