Neural mechanisms for color perception in the primary visual cortex

Research output: Contribution to journalReview articlepeer-review


New neurophysiological results show the existence of multiple transformations of color signals in the primary visual cortex (V1) in macaque monkey. These different color mechanisms may contribute separately to the perception of color boundaries and colored regions. Many cells in V1 respond to color and to black-white (luminance) patterns. These neurons are spatially selective and could provide signals about boundaries between differently colored regions. Other V1 neurons that prefer color over luminance respond without much spatial selectivity to colored stimuli, and could be the neural basis for the response to local color modulation within a region. How these different types of color cells combine inputs from cone photoreceptors is what gives them their different spatial selectivities for color.

Original languageEnglish (US)
Pages (from-to)426-432
Number of pages7
JournalCurrent Opinion in Neurobiology
Issue number4
StatePublished - Aug 1 2002

ASJC Scopus subject areas

  • General Neuroscience


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