Takashima Midori, Fujii Teruo, Shiina Ken
Department of Psychology, Chuo University, 742-1 Higashinakano, Hachioji-shi, Tokyo 192-0393, Japan.
Perception. 2009;38(9):1410-2. doi: 10.1068/p6478.
We investigated amodal completion with changes in two parameters: figure orientation, and the shape of the occluding and occluded figures. First, Markovich's [2002, Visual Mathematics 4(1); http://www.mi.sanu.ac.rs/vismath/fila] figure was presented in vertical, horizontal, and diagonal orientations. The results supported Markovich's finding of amodal completion by smooth continuity and symmetry. Amodal completion was also affected by orientation: symmetrical shape tended to appear when the pattern had vertical axis whilst smooth continuity appeared in diagonal orientation. Next, the shape of the exposed side of the occluded figure was changed from straight to curved. Finally, the shape of the grey occluder was changed from a disk to a half-disk or a quarter-disk. The results then showed the influence of the visible contour on amodal completion. This shows that the contextual relation of the whole figure is significant in amodal completion.
图形方向，以及遮挡图形和被遮挡图形的形状。首先，呈现了马尔科维奇[2002年，《视觉数学》4(1)；http://www.mi.sanu.ac.rs/vismath/fila]的图形，其方向为垂直、水平和对角线方向。结果支持了马尔科维奇通过平滑连续性和对称性实现非模态完成的发现。非模态完成也受到方向的影响：当图案具有垂直轴时，对称形状倾向于出现，而在对角线方向则出现平滑连续性。接下来，将被遮挡图形露出一侧的形状从直线变为曲线。最后，将灰色遮挡物的形状从圆盘变为半圆或四分之一圆。结果显示了可见轮廓对非模态完成的影响。这表明整个图形的上下文关系在非模态完成中具有重要意义。
