Shechter S, Hochstein S
Institute of Life Sciences, Hebrew University, Jerusalem, Israel.
Vision Res. 1989;29(5):579-91. doi: 10.1016/0042-6989(89)90044-8.
The effects of the relative size, luminance, and total luminous flux of apparent motion visual stimulus disk elements are studied, using a competitive paradigm. These dimensions can only be studied in pairs and we find that all three pairs have significant correspondence process effects. A comparison of the magnitudes of the effects, however, suggests that size and flux are the dimensions relevant to apparent motion processing, while luminance may not contribute to the correspondence process. Pitting distance against these dimensions in apparent motion tasks, we were able to find effective equivalence scales among them. Finally, interactions were found between the processing of some of these dimensions. The most pronounced interaction effect is that the addition of the size dimension increases the noise in the processing of distance, while size processing is not affected by the addition of the distance cue.
采用竞争范式研究了视运动视觉刺激圆盘元素的相对大小、亮度和总光通量的影响。这些维度只能成对研究，我们发现所有三对都有显著的对应过程效应。然而，对效应大小的比较表明，大小和光通量是与视运动处理相关的维度，而亮度可能对视运动处理没有贡献。在视运动任务中，将距离与这些维度进行对比，我们能够在它们之间找到有效的等效尺度。最后，发现了其中一些维度处理之间的相互作用。最显著的相互作用效应是，大小维度的加入增加了距离处理中的噪声，而大小处理不受距离线索加入的影响。
