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首页> 外文期刊>The European Journal of Neuroscience >The biological basis of the experience and categorization of colour
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The biological basis of the experience and categorization of colour

机译：颜色经验和分类的生物学基础

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We used the Land Colour Mondrian experiments in a Bayesian context to test the degree to which subjects vary in categorizing the colour of different patches, when each patch is made to reflect light of the identical wavelength-energy composition. The brain uses a ratio-taking mechanism to determine the ratio of light of every waveband reflected from a surface and from its surrounds. Our (Bayesian) hypothesis was that this ratio-taking mechanism is similar in all humans and therefore leads to a constant categorization of colours that differs little between them. The similarly categorized colours are the initial priors, with initial hues attached to them. Twenty subjects of different ethnic and cultural backgrounds, for all but one of whom English was not the primary language, viewed eight patches of different colour in two Mondrian displays; each patch, when viewed, was made to reflect identical ratios of long-, middle- and short-wave light. Subjects were asked to match the colour of the viewed patch with that of the Munsell chip coming closest in colour to that of the viewed patch, without using language. In terms of hue, there was less variability in matching warm hues than cool ones. In terms of colour categorization, there was little variability overall. We take the lack of significant variability between subjects in the matches made as a pointer to similar computational mechanisms being employed in different subjects to perceive colours, thus permitting them to assume that their categorization of colours has universal agreement and assent.
机译：我们在贝叶斯语境中使用土地蒙德里安实验来测试当对每个贴片反射相同波长 - 能量组成的光的光，以对分类不同贴片的颜色而变化的程度。大脑使用比率采取机制来确定从表面和周围反射的每个波带的光的光比。我们的（贝叶斯）假设是，所有人类的比例采取机制都相似，因此导致持续分类的颜色与它们之间很少不同。类似分类的颜色是初始前锋，初始色调附加到它们。除了英语不是主要语言之外的所有种族和文化背景的二十个，除了主要的语言之外，在两个蒙德里安展示中观看了八种不同颜色的斑块;当观看时，每个贴剂都反映了长，中和短波光的相同比率。要求受试者将所观看的补丁的颜色与Munsell芯片的颜色与在未使用语言的情况下以最接近的颜色匹配。在色调方面，匹配温暖色调的变化较小而不是凉爽的色调。在颜色分类方面，总体上几乎没有变化。我们在与不同科目中使用的相似计算机制所做的匹配中的匹配中缺乏显着的变化，从而允许他们假设他们对颜色的分类具有普遍的协议和同意。

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