Vecera Shaun P, Vogel Edward K, Woodman Geoffrey F
Department of Psychology, University of Iowa, Iowa City 52242-1407, USA.
J Exp Psychol Gen. 2002 Jun;131(2):194-205. doi: 10.1037//0096-3445.131.2.194.
Figure-ground assignment is an important visual process; humans recognize, attend to, and act on figures, not backgrounds. There are many visual cues for figure-ground assignment. A new cue to figure-ground assignment, called lower region, is presented: Regions in the lower portion of a stimulus array appear more figurelike than regions in the upper portion of the display. This phenomenon was explored, and it was demonstrated that the lower-region preference is not influenced by contrast, eye movements, or voluntary spatial attention. It was found that the lower region is defined relative to the stimulus display, linking the lower-region preference to pictorial depth perception cues. The results are discussed in terms of the environmental regularities that this new figure-ground cue may reflect.
图形-背景区分是一个重要的视觉过程；人类识别图形、关注图形并对图形采取行动，而非背景。有许多用于图形-背景区分的视觉线索。本文提出了一种新的图形-背景区分线索，称为下部区域：刺激阵列下部的区域比显示屏上部的区域看起来更像图形。对这一现象进行了探究，结果表明下部区域偏好不受对比度、眼球运动或自主空间注意力的影响。研究发现，下部区域是相对于刺激显示来定义的，这将下部区域偏好与图像深度感知线索联系起来。本文根据这一新的图形-背景线索可能反映的环境规律对研究结果进行了讨论。
