ILLUSORY DISPLACEMENT OF EQUILUMINOUS KINETIC EDGES
ILLUSORY DISPLACEMENT OF EQUILUMINOUS KINETIC EDGES
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DOI：
10.1068/p190611
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发表时间：
1990-01-01
期刊：
影响因子：
1.7
通讯作者：
ANSTIS, SM
中科院分区：
文献类型：
--
作者：
RAMACHANDRAN, VS;ANSTIS, SM
从固定随机点图案中切出固定窗口。当一系列点在窗口后面连续移动时，(a) 窗口即使是静止的，似乎也在向同一方向移动，(b) 定义窗口的“动态边缘”的位置也沿着点运动的方向移动，(c) 尽管点仍然清晰可见，但稳定固定时窗口的边缘往往会褪色。如果动力学边缘是等亮度的并且如果“窗口”区域被视为“图形”而不是“地面”，则虚幻的位移会大大增强。由于动力学边缘的提取可能涉及方向选择性细胞的使用，因此这种错觉可以提供有关视觉系统如何使用这些细胞的输出来定位动力学边缘的见解。
A stationary window was cut out of a stationary random-dot pattern. When a field of dots was moved continuously behind the window (a) the window appeared to move in the same direction even though it was stationary, (b) the position of the ‘kinetic edges’ defining the window was also displaced along the direction of dot motion, and (c) the edges of the window tended to fade on steady fixation even though the dots were still clearly visible. The illusory displacement was enhanced considerably if the kinetic edge was equiluminous and if the ‘window’ region was seen as ‘figure’ rather than ‘ground’. Since the extraction of kinetic edges probably involves the use of direction-selective cells, the illusion may provide insights into how the visual system uses the output of these cells to localize the kinetic edges.