The fact that some types of cones respond more quickly than others-and that some types of cones keep responding longer than others-leads to an imbalance that partly explains why you see colors. But your eyes and brain see the color white only when all three types of cones are responding equally. When a white flash goes by, all three types of cones respond. When you gaze at one place on the spinning disk, you are looking at alternating flashes of black and white. Blue-sensitive cones, for example, are the slowest to respond (have the longest latency time), but they keep responding the longest (have the longest persistence time). Each type of cone has a different latency time (the time in which it takes to respond to a color), and a different persistence-of-response time (the time it keeps responding after the stimulus has been removed). One is most sensitive to red light, one to green light, and one to blue light. Why people see color here is not fully understood, but the illusion involves color vision cells in your eyes called cones. Different people see different intensities of colors on this spinning disk.
0 kommentar(er)
