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The visual system is the part of the nervous system which allows organisms to see. It interprets the information from visible light to build a representation of the world surrounding the body. The visual system has the complex task of (re)constructing a three dimensional world from a two dimensional projection of that world. The psychological manifestation of visual information is known as visual perception. This article mostly describes the visual system of mammals, although other "higher" animals have similar visual systems. In this case, the visual system consists of Different species are able to see different parts of the light spectrum; for example, bees can see into the ultraviolet,[1] while pit vipers can accurately target prey with their infrared imaging sensors.[2] In the second half of the 19th century, many motifs of the nervous system were identified such as the neuron doctrine and brain localisation, which related to the neuron being the basic unit of the nervous system and functional localisation in the brain, respectively. These would become tenets of the fledgling neuroscience and would support further understanding of the visual system.
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