PSYC 100 Lecture Notes - Lecture 4: Hermann Von Helmholtz, Trichromacy, Color Blindness
17 Feb 2016
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What is necessary for you to experience the dancing elephant . Would an artificial intelligence (or an artificial visual system) be. Experience : moon, properties of thins we perceive, properties of sensory organs we use. Temporal and nasal part of the eye. Pathway 2: form, colour, brightness, contrast, depth, localization in space (more primitive functions, coordination with other sensory input. Basic parts: retina- back to front, iris- expands/contracts, pupil- controls amount of light going in, lens, cornea, blind spot, occipital lobe, optic nerve. Receptor cells: fovea (point of central focus, rods and cones. 3 kinds- sensitivity to wavelength: 600 nanometers- red, 500 nm- green, 450 nm- blue. Colour blindness- depending on type of cone not working. Trichromatic theory: 3 kinds of cones, producing color, problems. 2 renowned researchers, thomas young and hermann von. Helmholtz, contributed to the trichromatic theory of color vision. Theory began when thomas young proposed that color vision results from the actions of three different receptors.
