Ito Hiroyuki
Department of Visual Communication Design, Kyushu Institute of Design, Fukuoka-shi, Japan.
Percept Mot Skills. 2003 Jun;96(3 Pt 2):1187-93. doi: 10.2466/pms.2003.96.3c.1187.
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.
通过依次呈现的两帧随机深度配置，测量了立体（独眼）表观运动中的空间位移极限。每个深度配置由各种大小的立体近或远元素定义。将这些极限与亮度定义的表观运动中的极限进行比较。受试者的任务是对依次呈现的两帧随机点立体图的感知运动方向进行二选一强制选择。与立体配置产生正确运动感知的空间位移极限随元素大小的增加而更大。这些值几乎与相同元素大小的亮度定义配置所测量的值一致。这一结果表明，在立体和亮度定义的表观运动中，随机配置运动方向的辨别策略是相似的。
