Piggins D, Wilson J A, Robinson J O
University of Wales, Bangor.
Percept Mot Skills. 1996 Oct;83(2):387-400. doi: 10.2466/pms.1996.83.2.387.
Here a new depth effect evoked by the spatial and temporal interaction in 2-D of a slowly moving circle (optimally at 0.6 rads/sec) with an identical static circle is reported. Typically, respondents report that with increasing adjacency, commencing with separations of a few diameters, the moving circle appears in a different plane of depth to the static circle, it then usually appears to "dip" onto the static circle and after complete coincidence with it to rise away from it. This effect, together with a number of associated descriptions are commented upon, in addition to observations when viewing overlapped static circles and overlapped circles in motion, this latter stimulus condition evoking the stereokinetic effect. The authors have previously suggested that contour "sliding," which simulates motion parallax, is the key to understanding stereokinesis. The stimulus conditions giving rise to this new effect directly simulate the motion parallax information present in a retinal image.
本文报道了一种新的深度效应，该效应由一个缓慢移动的圆（最佳速度为0.6弧度/秒）与一个相同的静止圆在二维空间和时间上的相互作用所引发。通常情况下，受试者报告称，随着相邻程度的增加，从相隔几个直径开始，移动的圆会出现在与静止圆不同的深度平面上，然后它通常会“下沉”到静止圆上，在与静止圆完全重合后又从其上抬起。除了对这种效应以及一些相关描述进行评论外，还观察了观看重叠的静止圆和运动中的重叠圆时的情况，后一种刺激条件会引发立体运动效应。作者此前曾提出，模拟运动视差的轮廓“滑动”是理解立体运动的关键。产生这种新效应的刺激条件直接模拟了视网膜图像中存在的运动视差信息。
