Processing of Chromatic Information in the Peripheral Retina

外周视网膜中的颜色信息处理人类视网膜中有两种类型的光探测器，视杆细胞和视锥细胞。视锥细胞在日光条件下表现最好，而视杆细胞则专门用于夜间视力。在白天，人类能够感知颜色。这是因为有三种不同类型的锥体，每一种都能捕捉到不同的颜色光谱(蓝色、绿色和红色)。在夜间，人类的颜色感知相对受损。这项研究关注的是视锥和视锥在不太理想的条件下是如何工作的，即视锥和视锥同时探测光线，但两个探测器都没有处于最佳状态。这样的照明条件将与在黎明或黄昏时经历的情况相媲美。这项研究的原因是，多年来人们一直认为，即使在视杆和视锥都能检测到光的存在的情况下，视杆也不会有助于我们感知颜色的能力。现在已经知道，棒子会改变颜色感知，所以在白天条件下看到的物体的颜色可能与黎明或黄昏时看到的颜色不同。当使用颜色来传达信息，但查看颜色的照明条件正在变化时，颜色提供的信息可能不准确。这项研究的目的是确定在什么情况下会出现颜色知觉故障，以及视觉系统如何补偿这些故障。该项目的结果可应用于彩色监视器的设计、彩色信息传播的有效性以及驾驶舱和/或视频显示器的设计。

Processing of Chromatic Information in the Peripheral Retina There are two types of light detectors in the human retina, rods and cones. Cones perform best in daylight conditions, whereas rods are specialized for night vision. In the daylight, humans are able to perceive color. This is because there are three different types of cones, each picking up on different spectrums of color (blue, green, and red). At night, human color perception is relatively impaired.This study focuses on how the cones and rods operate under less than ideal conditions; conditions where both rods and cones are detecting light at the same time but neither detector is operating at its best. Such lighting conditions would be comparable to those experienced at dawn or dusk. The reason for this study is that for many years it has been assumed that rods do not contribute to our ability to perceive color, even under conditions where both rods and cones are detecting the presence of light. It is now known that rods alter color perception, so the color of an object seen under daylight conditions may not be the same as the color seen at dawn or dusk. When color is used to convey information, but lighting conditions under which the color is viewed are changing, the information provided by color may not be accurate. The goal of this study is determine under what conditions failures in color perception arise and how the visual system may compensate for these failures. The results from this project may be applied to the design of color monitors, the efficacy of color information dissemination, and the design of cockpit and/or video displays.