Opponent-process theory is a psychological and neurological model proposed in 1878 by Ewald Hering, a German physiologist, to account for a wide range of behaviors, including color vision; this model was expanded by psychologist Richard Solomon to explain opponent process theory.
Read more about Opponent-process Theory: Visual Perception, Motivation and Emotion
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“If my theory of relativity is proven correct, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say that I am a German and Germany will declare that I am a Jew.”
—Albert Einstein (1879–1955)