Opponent-process Theory

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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    Osteopath—One who argues that all human ills are caused by the pressure of hard bone upon soft tissue. The proof of his theory is to be found in the heads of those who believe it.
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