环境表面与感知视觉空间的压缩
Environmental surfaces and the compression of perceived visual space.
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. 2011 Jun 7;11(7):4. doi: 10.1167/11.7.4.
The present study examined whether the compression of perceived visual space varies according to the type of environmental surface being viewed. To examine this issue, observers made exocentric distance judgments when viewing simulated 3D scenes. In 4 experiments, observers viewed ground and ceiling surfaces and performed either an L-shaped matching task (Experiments 1, 3, and 4) or a bisection task (Experiment 2). Overall, we found considerable compression of perceived exocentric distance on both ground and ceiling surfaces. However, the perceived exocentric distance was less compressed on a ground surface than on a ceiling surface. In addition, this ground surface advantage did not vary systematically as a function of the distance in the scene. These results suggest that the perceived visual space when viewing a ground surface is less compressed than the perceived visual space when viewing a ceiling surface and that the perceived layout of a surface varies as a function of the type of the surface.
本研究考察了所感知的视觉空间的压缩是否会根据所观察的环境表面类型而有所不同。为了探究这个问题，观察者在观看模拟3D场景时进行了外心距离判断。在4个实验中，观察者观看地面和天花板表面，并执行L形匹配任务（实验1、3和4）或二等分任务（实验2）。总体而言，我们发现地面和天花板表面上所感知的外心距离都有相当大的压缩。然而，地面表面上所感知的外心距离的压缩程度小于天花板表面。此外，这种地面表面优势并不会随着场景中的距离而系统地变化。这些结果表明，观看地面表面时所感知的视觉空间的压缩程度小于观看天花板表面时所感知的视觉空间，并且表面的感知布局会根据表面类型而变化。
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