Editing Color constancy (section)

==== Cone adaptation ====
Cones, specialized cells within the retina, will adjust relative to light levels within the local environment.<ref name=":02" /> This occurs at the level of individual neurons.<ref name="ReferenceA">{{cite journal | last1 = Lee | first1 = B. B. | last2 = Dacey | first2 = D. M. | last3 = Smith | first3 = V. C. | last4 = Pokorny | first4 = J. | year = 1999 | title = Horizontal cells reveal cone type-specific adaptation in primate retina | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 96 | issue = 25| pages = 14611–14616 | doi=10.1073/pnas.96.25.14611| pmid = 10588753 | pmc = 24484 | bibcode = 1999PNAS...9614611L | doi-access = free }}</ref> However, this adaptation is incomplete.<ref name=":1" /> [[Chromatic adaptation]] is also regulated by processes within the brain.  Research in monkeys suggest that changes in chromatic sensitivity is correlated to activity in [[Parvocellular cell|parvocellular]] [[Lateral geniculate nucleus|lateral geniculate]] neurons.<ref>{{cite journal | last1 = Creutzfeldt | first1 = O. D. | last2 = Crook | first2 = J. M. | last3 = Kastner | first3 = S. | last4 = Li | first4 = C.-Y. | last5 = Pei | first5 = X. | year = 1991 | title = The neurophysiological correlates of colour and brightness contrast in lateral geniculate neurons: 1. Population analysis | journal = Experimental Brain Research | volume = 87 | issue = 1| pages = 3–21 | doi=10.1007/bf00228503| pmid = 1756832 | s2cid = 1363735 }}</ref><ref>{{cite journal | last1 = Creutzfeldt | first1 = O. D. | last2 = Kastner | first2 = S. | last3 = Pei | first3 = X. | last4 = Valberg | first4 = A. | year = 1991 | title = The neurophysiological correlates of colour and brightness contrast in lateral geniculate neurons: II. Adaptation and surround effects | journal = Experimental Brain Research | volume = 87 | issue = 1 | pages = 22–45 | doi=10.1007/bf00228504| pmid = 1756829 | s2cid = 75794 }}</ref> Color constancy may be both attributed to localized changes in individual retinal cells or to higher level neural processes within the brain.<ref name="ReferenceA"/>