Bradley D R, Dumais S T
Perception. 1984;13(2):155-64. doi: 10.1068/p130155.
The apparent stratification in depth of subjective contour figures over their backgrounds was investigated as a function of illumination level, figure size, and viewing distance. Magnitude estimation, with a real contour figure serving as the modulus, was used to measure the stratification in depth of a subjective contour figure over its background. Illumination level and retinal size both had significant effects on the depth stratification of the subjective contour figures. The greatest apparent depth differences were obtained for figures of small retinal size under low levels of illumination. These results paralleled previous findings for judgments of subjective contour strength. Consequently, both contour clarity and depth stratification of subjective contour figures are affected in similar ways by illumination level, figure size, and viewing distance. The implications of this response coupling are discussed in terms of current theories of subjective contours.
研究了主观轮廓图形相对于其背景在深度上的明显分层情况，将其作为光照水平、图形大小和观察距离的函数。以真实轮廓图形作为模数进行量级估计，以测量主观轮廓图形相对于其背景在深度上的分层情况。光照水平和视网膜大小对主观轮廓图形的深度分层均有显著影响。在低光照水平下，视网膜尺寸小的图形获得的表观深度差异最大。这些结果与先前关于主观轮廓强度判断的研究结果相似。因此，主观轮廓图形的轮廓清晰度和深度分层都受到光照水平、图形大小和观察距离的类似影响。根据当前的主观轮廓理论讨论了这种反应耦合的意义。
