AP PSYCHOLOGY

Detailed explanation-1: -The opponent-process theory suggests that there are three opponent channels, each comprising an opposing color pair: red versus green, blue versus yellow, and black versus white (luminance). The theory was first proposed in 1892 by the German physiologist Ewald Hering.

Detailed explanation-2: -The opponent process theory suggests that the way humans perceive colors is controlled by three opposing systems. We need four unique colors to characterize perception of color: blue, yellow, red, and green. According to this theory, there are three opposing channels in our vision.

Detailed explanation-3: -Visual perception The opponent-process theory was first developed by Ewald Hering. He noted that there are color combinations that we never see, such as reddish-green or bluish-yellow. Opponent-process theory suggests that color perception is controlled by the activity of three opponent systems.

Detailed explanation-4: -The second, opponent-process theory, is based on the idea that the visual system is responsive to three color pairs (green-red, blue-yellow, and black-white) and that color vision is due to the combined differential response of these three different components.

Detailed explanation-5: -The trichromatic theory, which derives from the combined works of the 19th-century scientists Young and Helmholtz, says that there are three different cone systems in the eye that perceive three types of color: blue, green and red.