Guardini Pietro, Gamberini Luciano
General Psychology Department, University of Padua, via Venezia 8, I 35131 Padua, Italy.
Perception. 2008;37(6):877-88. doi: 10.1068/p5640.
Depth stratification in illusory-contour figures was studied by superimposing Kanizsa figures on heterogeneous backgrounds. Gaussian-noise textures were employed in two rating-scale experiments to explore observers' judgments of (i) illusory-contour clarity, (ii) brightness enhancement, and (iii) depth stratification. In experiment 1, depth stratification was found to be stronger in heterogeneous conditions. In experiment 2, texture coarseness was manipulated to determine how depth stratification is affected by linear elements of different sizes in the background, and to relate the variation to contour clarity and brightness enhancement. Results suggest that depth stratification is independent of contour clarity and brightness enhancement. Preliminary novel observations on illusory-contour formation are reported.
通过将卡尼萨图形叠加在异质背景上，研究了虚幻轮廓图形中的深度分层。在两个评级量表实验中使用高斯噪声纹理，以探究观察者对（i）虚幻轮廓清晰度、（ii）亮度增强和（iii）深度分层的判断。在实验1中，发现深度分层在异质条件下更强。在实验2中，操纵纹理粗糙度以确定背景中不同大小的线性元素如何影响深度分层，并将这种变化与轮廓清晰度和亮度增强联系起来。结果表明，深度分层与轮廓清晰度和亮度增强无关。报告了关于虚幻轮廓形成的初步新颖观察结果。
