The perception of color Research Paper Example | Topics and Well Written Essays - 1000 words

The perception of alter - Research Paper ExampleThe Development of Color Vision in human beings, and the eye itself, is a remarkable growingary process. The human eye itself did not develop in a linear straightforward manner. It most likely began as a light sensitive key on smaller creatures and then became more differentiated creating light sensitive structures that began to be dispersed wrong of a the forming eyeball to become the retina. At first the retina was most likely a movement demodulator but over time the ability to delineate details and the ability to see illusion was developed. (Gordon) The evolution of the eye is a standard development in all vertebrates as well as legion(predicate) non-vertebrate species as well.But what exactly is color? Color and light go together and are inseparable companions. cardinal object can emit light and another object can reflect that light. The former is ordinarily undergoing some chemical substance reactions that create color and is hooked on the material it is combusting for the color spectrum it emits, objects such as the sun, or a light bulb for example. The latter objects which reflect light are a crew of the color range of light hitting their surfaces and the reflective properties of their surfaces. For instance, the leaves of most trees reflect green light because of the chemical chlorophyll, which fuels photosynthesis, however they are also designed to absorb the spectrum of red light which activates the chemical reaction turn of events carbon dioxide into breathable oxygen. There is also a considerable variance of color by the perceiving entity. There is a wide variety in the range of deal across many different organisms, largely dependent of possible evolutionary and ecological needs. This ranges from seeing only in black and white to an even broader short letter of colors than adult male birth. for instance, the ability to see into infra-red or ultraviolet wavelengths color is a heterogene ous compendium of perceptual concepts generated from wavelength-sensitive data for a variety of specialized purpossess by cognitive systems with different neuro-computational structures and evolutionary histories. (Matthen 186) human beings possess what is known as trichromatic vision. Tri (three) and Chroma (color). Our human eyes have three color receptors that are individually sensitive to red, green, and blue light . While dcecptively simple these three receptors al pocket-size humans to distinguish about 2.3 million different varieties of colors. (Kleiner 12) The following figure is a photoreceptor nerve grouping skeletal system 2 Photoreceptor Grouping (Farndon 57) There are two types of light-sensing cells (1) rods, which are used in most low light situations and distinguish between differing shades of grey and the three kinds of (2) cones, that are sensitive to the color spectrum to the exceptional wavelength of light as described previously. (Savage) Humans actually per ceive quite a very change range of the electromagnetic spectrum, from 400 to 700 nanometers. Figure 3 Electromagnetic Range of Human Vision, Rods & Cones (Color Vision A) colorful vision is actually a bit of a rarity when you consider a species wide digest of all organisms that have optic nerves and eye, even just among the mammals only a few possess trichromatic vision. When comparing dichromatic species, those who perceive only the blue and red zone of the spectrum, with trichromatic species on that point is no apparent Darwinian direct line of descent. (Matthen) The following figure is a simplistic interlingual rendition of this concept Figure 4 Divergence of color perception over time (History of biological maturation 2007) Why develop this extra range of color vision, or for that matter why develop color vision at all? Some researchers believe that a declining sense of smell in came get hold of in hand with the rise in color vision. This newly developed perception allowe d those species with color vision to detect edible fruit from greater distances thus improving their change for