IGNOU PHE 9 2018 - Discuss the opponent-process theory of colour vision.

Question

Discuss the opponent-process theory of colour vision.

27 Jan 2018

Answer :

Word Count : 287

Opponent-Process Theory is developed by Ewald Hering(1920/1964), the opponent-process theory states that the cone photoreceptors are linked together to form three opposing colour pairs: blue/yellow, red/green, and black/white. Activation of one member of the pair inhibits activity in the other. Consistent with this theory, no two members of a pair can be seen at the same location, which explains why we don't experience such colours as

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