我们所看到的世界,是不是真实的世界呢?这个问题长久以来,似乎一直以一个哲学命题存在。我们所看到的世界,当然不能说是唯一的、真实的世界,而是取决于诸多因素,包括人类眼睛的结构、视觉回路,每个人不同的经验与对世界的认识,观察者的感情、偏见等等。人类的视觉,到“认知”世界的过程,又分为感觉(Sensation)和感知(Perception)两个部分。物体的影像经过晶状体投射到视网膜上,成的是倒像,而能处理色彩信息的视锥细 The world we see is not a real world? This question has long seemed to have existed as a philosophical proposition. The world we see, of course, can not be said to be the only real world, but it depends on many factors, including the structure of the human eye, the visual circuit, the experience of each person, the understanding of the world, the feelings of observers, Prejudice and so on. Human vision, to the “cognitive” world process, is divided into Sensation and Perception. The image of an object is projected onto the retina through the lens, forming an inverted image that can handle the cone of color information