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psyc notes chapter 4

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SENSATION is the stimulation of sense organs -Sensation involves the absorption of energy, such as light or sound waves, by sensory organs, such as the eyes and ears PERCEPTION is the selection, organization, and interpretation of sensory input -Perception involves organizing and translating sensory input into something meaningful Light is a form of electromagnetic radiation that travels as a wave, moving, natural enough, at the speed of light Amplitude: height of the light wave. Affects perception of brightness Wavelength: distance between peaks. Affects perception of color Purity: How varied the mix is. Influences perception of the saturation, or richness, of colors. Saturation refers to the relative amount of whiteness in a color. As whiteness declines, saturation increases -
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