Color Vision in the Peripheral Retina

周边视网膜的色觉

• 批准号: 9603613
• 负责人: Vicki Volbrecht
• 金额: $ 31.4万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-02-01 至 2002-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9603613&HistoricalAwards=false
• 关键词: Color; Vision; Peripheral; Retina

Color vision in humans is best in a small central region of the retina of the eye. This region, called the fovea, contains a very high proportion of the photoreceptors called cone cells, which are specialized for different wavelengths of the visible spectrum. Cone cells are present but not so densely packed outside the fovea, and we have very little understanding of whether the foveal processes such as "color opponent" mechanisms work in these more peripheral areas where there is a far higher proportion of the rod photoreceptors that are not specialized for color. This study uses a novel approach integrating the latest anatomical data with quantitative psychophysical experiments to determine the role of wavelength and intensity in color vision for stimuli striking outside the fovea. Results will provide an excellent test whether our models for foveal color vision are generally valid or need modification, and will have an impact not only on visual neuroscience, but on artificial vision and the psychology of perception.

人类的色觉在眼睛视网膜的一个小的中心区域是最好的。 这个区域，称为中央凹，含有很高比例的 光感受器称为视锥细胞，专门用于不同的波长 可见光谱。 锥细胞存在，但不密集 在中央凹之外，我们对中央凹是否 诸如“颜色对手”机制的过程在这些更外围的环境中起作用。 在这些区域， 而不是专门为颜色。 这项研究使用了一种新颖的方法，整合了最新的 解剖数据与定量心理物理实验，以确定 波长和强度在色觉中的作用 中央凹 结果将提供一个很好的测试，我们的模型是否为中央凹色觉 一般来说是有效的或需要修改，并将产生影响，不仅对 视觉神经科学，而是人工视觉和感知心理学。