The trichromatic theory explains processing at the retina or cone, of which there are three types. The ________ explains more about how cells in the LGN of the thalamus and visual cortex process color information.

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The opponent-process theory complements the trichromatic theory by explaining how cells in the LGN (lateral geniculate nucleus) of the thalamus and the visual cortex process color information. It suggests that color perception is controlled by the activity of two opponent systems: a blue-yellow mechanism and a red-green mechanism, along with a black-white mechanism for brightness. This theory accounts for various color perception phenomena that the trichromatic theory cannot, such as afterimages and the fact that certain color combinations (like reddish-green) are never seen.

The Trichromatic Theory Explains Processing at the Retina or Cone