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Hello, I am looking for someone to write an essay on Trichromatic Theory. It needs to be at least 500 words.Humans’ trichromacy evolved from pigments inherited from early vertebrates. Research has s
Hello, I am looking for someone to write an essay on Trichromatic Theory. It needs to be at least 500 words.
Humans’ trichromacy evolved from pigments inherited from early vertebrates. Research has shown that ganglion and special bipolar cells only allows signals with the short wavelength. This means that there are different pathways for signals of various wavelengths through thalamus tissue to the visual cortex. People with normal vision are able to use these cells to create normal range of colors. Three cone types in eye retina contain different kinds of photosensitive pigments composed of the transmembrane protein known as the opsin. There is also 11-cis retinal which is a light sensitive molecule. Each pigment is sensitive to the specific wavelength of light and therefore, color signals are only generated if the pigment is struck by a photon with that specific wavelength. The short wavelength cones are sensitive to wavelengths of about 420 nm, medium wavelength cones are sensitive to wavelengths of about 530 nm, and long wavelength cones are sensitive to wavelengths of about 560 nm. Interpretation of color in the human brain is based on the wavelength and intensity of recorded signal. Each time a signal is sent to the brain. its intensity and color are interpreted. More than one cell is used to interpret color of light and therefore trichromatic color vision is achieved by combinations of cell responses. An average person is able to distinguish different colors up to seven million. It is clear that the trichromatic theory is based on evidence from color mixing and color matching studies.
