• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nature >Visual decomposition of colour through motion extrapolation
【24h】

Visual decomposition of colour through motion extrapolation

机译：通过运动外推对颜色进行视觉分解

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The perception of yellow has played a central role in distinguishing two main theories of colour vision. Hering proposed that yellow results from the activation of a distinct retinal-neural mechanism, whereas according to the Young-Helmholtz-Maxwell view, yellow results from the combined activation of red and green cone mechanisms. When red and green images are presented separately to corresponding retinal locations in the two eyes, the resulting sensation is yellow. As the pathways from the two eyes do not converge until the cortex, this suggests that yellow can indeed arise from the central combining of separate red and green channels. I now show that the reverse process can also occur; the visual system can decompose a 'yellow' stimulus into its constituent red and green components. A 'yellow' stimulus was created by optically superimposing a flashed red line onto a moving green bar. If the bar is visible only briefly, the flashed line appears yellow. If the trajectory of the green bar is exposed for sufficient time, however, the line is incorrectly perceived to trail the bar, and appears red. Motion processing occurs in the cortex rather than the retina in primates, and so the ability of motion cues to affect the perception of colour is consistent with the Young-Helmholtz-Maxwell notion of a 'central synthesis' of yellow.
机译：黄色的感知在区分色觉的两个主要理论中起着中心作用。 Hering提出黄色是由独特的视网膜神经机制激活引起的，而根据Young-Helmholtz-Maxwell的观点，黄色是由红色和绿色锥体机制的联合激活引起的。当红色和绿色图像分别显示在两只眼睛中相应的视网膜位置时，产生的感觉是黄色的。由于来自两只眼睛的通路直到皮质都没有收敛，这表明黄色的确可以由分开的红色和绿色通道的中央结合而产生。现在，我证明反向过程也可能发生。视觉系统可以将“黄色”刺激分解为红色和绿色的组成部分。通过将闪烁的红线光学叠加到移动的绿色条上来创建“黄色”刺激。如果该条仅短暂可见，则闪烁的行显示为黄色。但是，如果绿色条形的轨迹暴露了足够的时间，则该线会被错误地认为会拖尾，并显示为红色。运动处理发生在皮质中，而不是在灵长类动物的视网膜中发生，因此运动提示影响颜色感知的能力与“中心合成”黄色的Young-Helmholtz-Maxwell概念一致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号