Perception of three-dimensional shape influences colour perception through mutual illumination
Perception of three-dimensional shape influences colour perception through mutual illumination
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DOI：
10.1038/47245
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发表时间：
1999-12-23
期刊：
影响因子：
64.8
通讯作者：
Hurlbert, AC
中科院分区：
文献类型：
--
作者：
Bloj, MG;Kersten, D;Hurlbert, AC
自然界中的物体具有不同的视觉属性，包括形状、颜色、表面纹理和运动。先前的知觉研究假设大脑分析表面的颜色独立于其三维形状和观察几何形状（1，2），尽管在视觉通路的早期颜色和二维形状处理之间存在神经连接（3，4）。在这里，我们表明，颜色感知的强烈影响，三维形状感知的一种新的，彩色版本的马赫卡，一个凹的折叠卡的一面由洋红色的纸和其他的白色纸。从洋红色纸张反射的光在白色侧投射出粉红色的辉光。当感知到的卡片形状从凹面翻转到凸面时，感知到的白色面的颜色从淡粉色变为深洋红。这种效果表明，人类视觉系统在颜色感知的早期阶段就包含了相互照明的知识，即表面之间光反射的物理学。
Objects in the natural world possess different visual attributes, including shape, colour, surface texture and motion. Previous perceptual studies have assumed that the brain analyses the colour of a surface independently of its three-dimensional shape and viewing geometry(1,2), although there are neural connections between colour and two-dimensional form processing early in the visual pathway(3,4). Here we show that colour perception is strongly influenced by three-dimensional shape perception in a novel, chromatic version of the Mach Card-a concave folded card with one side made of magenta paper and the other of white paper. The light reflected from the magenta paper casts a pinkish glow on the white side. The perceived colour of the white side changes from pale pink to deep magenta when the perceived shape of the card flips from concave to convex. The effect demonstrates that the human visual system incorporates knowledge of mutual illumination-the physics of light reflection between surfaces-at an early stage in colour perception.