Editing Opponent process (section)

===Neurological basis===
{{see also|Lateral geniculate nucleus#Color processing}}
[[File:opponent_process_contrast_sensitivity_functions.svg|thumb|Spatial contrast sensitivity functions for luminance and chromatic contrast.]]
The neurological conversion of color from [[LMS color space]] to the opponent process is believed to take place mostly in the [[lateral geniculate nucleus]] (LGN) of the [[thalamus]], though it may also take place in the [[retina bipolar cell]]s. <!-- Need more info about bipolar cells --> [[Retinal ganglion cell]]s carry the information from the retina to the LGN, which contains three major classes of layers:<ref name=Gho17>[https://doi.org/10.1016/j.pneurobio.2017.06.002 M. Ghodrati, S.-M. Khaligh-Razavi, S. R. Lehky, Towards building a more complex view of the lateral geniculate nucleus: recent advances in understanding its role, Prog. Neurobiol. 156:214–255, 2017.]</ref>
* [[Magnocellular layer]]s (large-cell){{dash}}responsible largely for the luminance channel
* [[Parvocellular layer]]s (small-cell){{dash}}responsible largely for red–green opponency
* [[Koniocellular layer]]s{{dash}}responsible largely for blue–yellow opponency