Department of Psychology, University of California San Diego, La Jolla, CA, USA.
Department of Psychology, Glendon College, Toronto, Ontario, Canada.
J Vis. 2024 Jul 2;24(7):11. doi: 10.1167/jov.24.7.11.
Moving frames produce large displacements in the perceived location of flashed and continuously moving probes. In a series of experiments, we test the contributions of the probe's displacement and the frame's displacement on the strength of the frame's effect. In the first experiment, we find a dramatic position shift of flashed probes whereas the effect on a continuously moving probe is only one-third as strong. In Experiment 2, we show that the absence of an effect for the static probe is a consequence of its perceptual grouping with the static background. As long as the continuously present probe has some motion, it appears to group to some extent with the frame and show an illusory shift of intermediate magnitude. Finally, we informally explored the illusory shifts seen for a continuously moving probe when the frame itself has a more complex path. In this case, the probe appears to group more strongly with the frame. Overall, the effects of the frame on the probe demonstrate the outcome of a competition between the frame and the static background in determining the frame of reference for the probe's perceived position.
运动框架会使闪烁和连续运动探针的感知位置发生大的位移。在一系列实验中，我们测试了探针位移和框架位移对框架效应强度的贡献。在第一个实验中，我们发现闪烁探针的位置明显移动，而对连续运动探针的影响只有三分之一那么强。在实验 2 中，我们表明静态探针没有效果是因为它与静态背景的知觉分组。只要连续出现的探针有一些运动，它就会在某种程度上与框架分组，并显示出中等程度的错觉位移。最后，我们非正式地探讨了当框架本身具有更复杂的路径时，连续运动探针所产生的错觉位移。在这种情况下，探针似乎与框架更强烈地分组。总的来说，框架对探针的影响表明了在确定探针感知位置的参考系时，框架和静态背景之间的竞争结果。
