Department of Psychology, Glendon College, York University, Toronto, ON, Canada.
Centre for Vision Research, York University, Toronto, ON, Canada.
J Vis. 2024 Oct 3;24(11):8. doi: 10.1167/jov.24.11.8.
The perception of an object's location is profoundly influenced by the surrounding dynamics. This is dramatically demonstrated by the frame effect, where a moving frame induces substantial shifts in the perceived location of objects that flash within it. In this study, we examined the elements contributing to the large magnitude of this effect. Across three experiments, we manipulated the number of probes, the dynamics of the frame, and the spatiotemporal relationships between probes and the frame. We found that the presence of multiple probes amplified the position shift, whereas the accumulation of the frame effect over repeated motion cycles was minimal. Notably, an oscillating frame generated more pronounced effects compared to a unidirectional moving frame. Furthermore, the spatiotemporal distance between the frame and the probe played pivotal roles, with larger shifts observed near the leading edge of the frame. Interestingly, although larger frames produced stronger position shifts, the maximum shift occurred almost at the same distance relative to the frame's center across all tested sizes. Our findings suggest that the number of probes, frame size, relative probe-frame distance, and frame dynamics collectively contribute to the magnitude of the position shift.
物体位置的感知受到周围动态的深刻影响。这一点在框架效应中得到了明显的体现，即运动的框架会引起框架内闪烁物体的感知位置发生实质性的移动。在这项研究中，我们研究了导致这种效应幅度较大的因素。通过三个实验，我们操纵了探针的数量、框架的动态以及探针和框架之间的时空关系。我们发现，多个探针的存在会放大位置移动，而在重复的运动周期中，框架效应的积累是最小的。值得注意的是，与单向运动的框架相比，摆动的框架产生的影响更为明显。此外，框架和探针之间的时空距离也起着关键作用，在框架的前缘附近观察到更大的移动。有趣的是，尽管更大的框架会产生更强的位置移动，但在所有测试的尺寸中，最大的移动几乎都发生在距离框架中心相同的距离处。我们的研究结果表明，探针的数量、框架的大小、相对探针-框架的距离和框架的动态共同导致了位置移动的幅度。
