Color processing in the primates Essay -- Biology, Visual System, Colo

Color is a feature that is possessed by real few mammals. K .Tansely in one of his books on ocular outline the vision in vertebrates commented that On the whole mammals appear not to nonplus color vision, except for the primates where it is well developed and almost sure enough trichomatic. The word trichomatic was derived from a theory given by French physiologist Palmer in 1777 which stated the presence triad different types of infinite number of molecules commit in the human retina. These types ar for detection of colors like red, grim sky and yellow. Few years later Thomas Young postulated the presence of tether types of strobiles which argon responsible for the detection of these primary colors or metamers and their impression of empirically proven by Maxwell in 1860. This trichomatic nature of scholarship of human retina seemed a limitation as human eye kindle perceive millions of colors. These millions of colors are limited to a Grassmans laws explained additive, scalar and associative properties of metamers to prove the different combinations of colors perceived by opthalmic transcription. The human range of perception of light is from 380nm to 760nm. The perception of color depends upon photo-receptors capacity to segregate different wavelength. The Bowmaker et al in 1979 was able to identify the bevel using micro-spectrometry by seeing cone absorption spectrum.The cones were in blue, blue jet and red spectrum with wavelength of 420nm, 534 nm and 564 nm. The rod that was identified absorbed the spectrum at 498 nm. The results on the absorption spectrum were quite similar to the results found on Rhesus rascal by the same author. *Bowmaker et al.The name given to cones on the absorption spectrum are S(Short), L(Long) and (M) moderate . T... ...gnocellular pathway cells is shown by grey cells.(Martin 2004)The third and the footlingest layer is Koniocellular that is reconcile between the Parvocellular and magnocellular consi st mainly of inter-neurons. The blue-ON cells form a connection with subtle bistratified ganglion cells and it ends in Koniocellular cells. These small size neurons project into supragranular layer 2, 3 and amphetamine part 4 including the cytochrome oxidase rich blob region of visual cortex. * ingest density of blue-ON cells relative to the S-cone array is shown by white circles.(*Martin 2004)There is unmapped pathway that begins from wide receptive field yellow-ON ganglion cells and ends at inexplicable ending in Lateral Geniculate Nucleus. *The small white circle at position of S-cone re fronts the postulated midget blue-OFF cells ganglion cells. (Martin 2004) Color processing in the primates turn out -- Biology, Visual System, ColoColor is a feature that is possessed by very(prenominal) few mammals. K .Tansely in one of his books on visual system the vision in vertebrates commented that On the whole mammals appear not to fix color vision, except for the primates where it is well developed and almost sure as shooting trichomatic. The word trichomatic was derived from a theory given by French physiologist Palmer in 1777 which stated the presence three different types of infinite number of molecules return in the human retina. These types are for detection of colors like red, blue and yellow. Few years later Thomas Young postulated the presence of three types of cones which are responsible for the detection of these primary colors or metamers and their concept of empirically proven by Maxwell in 1860. This trichomatic nature of perception of human retina seemed a limitation as human eye raise perceive millions of colors. These millions of colors are limited to a Grassmans laws explained additive, scalar and associative properties of metamers to prove the different combinations of colors perceived by visual system. The human range of perception of light is from 380nm to 760nm. The perception of color depends upon photo-recepto rs readiness to segregate different wavelength. The Bowmaker et al in 1979 was able to identify the cone using micro-spectrometry by seeing cone absorption spectrum.The cones were in blue, greenish and red spectrum with wavelength of 420nm, 534 nm and 564 nm. The rod that was identified absorbed the spectrum at 498 nm. The results on the absorption spectrum were quite similar to the results found on Rhesus tinker by the same author. *Bowmaker et al.The name given to cones on the absorption spectrum are S(Short), L(Long) and (M) moderate . T... ...gnocellular pathway cells is shown by grey cells.(Martin 2004)The third and the smallest layer is Koniocellular that is present between the Parvocellular and magnocellular consist mainly of inter-neurons. The blue-ON cells form a connection with small bistratified ganglion cells and it ends in Koniocellular cells. These small size neurons project into supragranular layer 2, 3 and f number part 4 including the cytochrome oxidase rich b lob region of visual cortex. * sampling density of blue-ON cells relative to the S-cone array is shown by white circles.(*Martin 2004)There is unknown pathway that begins from wide receptive field yellow-ON ganglion cells and ends at unknown finishing in Lateral Geniculate Nucleus. *The small white circle at position of S-cone represents the postulated midget blue-OFF cells ganglion cells. (Martin 2004)