Craton L G, Yonas A
Institute of Child Development, University of Minnesota, Minneapolis 55455.
Child Dev. 1988 Dec;59(6):1522-9.
We investigated infants' sensitivity to a recently discovered kinetic depth cue, boundary flow. 5-month-old infants viewed computer-generated displays in which the relation between the motion of a boundary, indicating an edge, and 2 regions of dots on either side of the boundary, indicating surfaces, provided the only information specifying the order of the 2 surfaces in depth. Infants showed a significant reaching preference for the apparently nearer region of the display. Since previous research has demonstrated that infants reach more frequently for the nearer of 2 surfaces, this result indicates that 5-month-old infants are sensitive to boundary flow information for depth at an edge.
我们研究了婴儿对最近发现的一种动态深度线索——边界流的敏感度。5个月大的婴儿观看电脑生成的显示画面，其中表示边缘的边界运动与边界两侧表示表面的两个点区域之间的关系，是唯一指定两个表面深度顺序的信息。婴儿对显示画面中明显较近的区域表现出显著的伸手偏好。由于先前的研究表明，婴儿更频繁地伸手去够两个表面中较近的那个，这一结果表明5个月大的婴儿对边缘处深度的边界流信息敏感。
