Koning Arno, van Lier Rob
Nijmegen Institute for Cognition and Information, Radboud University Nijmegen, The Netherlands.
Acta Psychol (Amst). 2007 Sep;126(1):46-58. doi: 10.1016/j.actpsy.2006.09.011. Epub 2006 Nov 13.
In the Poggendorff illusion two collinear oblique lines, separated by two vertical lines, appear to be misaligned. 3-D processing of the oblique but not the vertical lines is considered to cause this apparent misalignment. We investigated whether more explicitly triggering 2-D versus 3-D interpretations of the different parts of Poggendorff-like displays would influence the apparent misalignment. In Experiment 1, we found that compared to 2-D controls, 3-D interpretations of the vertical parts did not influence apparent misalignment, while for the oblique parts 3-D processing resulted in more apparent misalignment than 2-D controls. In Experiment 2, the amount of contour convergence of the oblique parts was manipulated resulting in the 3-D blocks, but not the 2-D line patterns, to be perceived as receding in depth. Now, apparent misalignment increased the more the 3-D blocks were perceived as receding in depth. We conclude that apparent misalignment in Poggendorff-like displays can be influenced by different interpretations of its separate parts, while keeping the local junctions between the different elements the same.
在波根多夫错觉中，两条由两条垂直线隔开的共线斜线看起来似乎未对齐。人们认为，对斜线而非垂直线进行三维处理会导致这种明显的未对齐现象。我们研究了更明确地触发对类波根多夫展示不同部分的二维与三维解读是否会影响这种明显的未对齐。在实验1中，我们发现，与二维对照组相比，对垂直部分的三维解读并未影响明显的未对齐，而对于倾斜部分，三维处理导致的明显未对齐比二维对照组更多。在实验2中，对倾斜部分的轮廓收敛量进行了操控，使得三维方块（而非二维线条图案）被感知为向深度方向后退。现在，三维方块被感知为向深度方向后退得越多，明显的未对齐就增加得越多。我们得出结论，在保持不同元素之间的局部连接相同的情况下，类波根多夫展示中的明显未对齐会受到对其不同部分的不同解读的影响。
