地面表面在视觉场景呈现中的优势。
The advantage of a ground surface in the representation of visual scenes.
作者信息
Bian Zheng, Andersen George J
机构信息
Department of Psychology, University of California, Riverside, Riverside, CA 92521, USA.
出版信息
J Vis. 2010 Jul 1;10(8):16. doi: 10.1167/10.8.16.
The present study used change detection tasks to examine whether there is an advantage of a ground surface in representing visual scenes. In 6 experiments, a flicker paradigm (Experiments 1 through 4) or a one-shot paradigm (Experiments 5 and 6) was used to examine whether changes on a ground surface were easier to detect than changes on a ceiling surface. Overall, we found that: (1) there was an advantage in detecting changes on a ground surface or changes to objects on a ground surface; (2) this advantage was dependent on the presence of a coherent ground surface; (3) this advantage could propagate to objects connected to the ground surface through "nested" contact relations; (4) this advantage was mainly due to improved encoding rather than improved retrieval and comparison of the ground surface; and (5) this advantage was dependent on the presentation duration of the scene but not the number of objects presented in the scene. Together, these results suggest a unique role of the ground surface in organizing visual scenes.
本研究使用变化检测任务来检验地面在呈现视觉场景方面是否具有优势。在6个实验中，采用了闪烁范式（实验1至4）或一次性范式（实验5和6）来检验地面上的变化是否比天花板表面上的变化更容易被检测到。总体而言，我们发现：（1）在检测地面上的变化或地面上物体的变化方面存在优势；（2）这种优势取决于连贯地面的存在；（3）这种优势可以通过“嵌套”接触关系传播到与地面相连的物体上；（4）这种优势主要是由于地面编码的改善，而不是检索和比较的改善；（5）这种优势取决于场景的呈现持续时间，而不是场景中呈现的物体数量。总之，这些结果表明地面在组织视觉场景中具有独特的作用。
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