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Parallel colour-opponent pathways to primary visual cortex

Author

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  • Soumya Chatterjee

    (The Salk Institute for Biological Studies
    University of California)

  • Edward M. Callaway

    (The Salk Institute for Biological Studies
    University of California)

Abstract

The trichromatic primate retina parses the colour content of a visual scene into ‘red/green’ and ‘blue/yellow’ representations1,2. Cortical circuits must combine the information encoded in these colour-opponent signals to reconstruct the full range of perceived colours3. Red/green and blue/yellow inputs are relayed by the lateral geniculate nucleus (LGN) of thalamus to primary visual cortex (V1), so understanding how cortical circuits transform these signals requires understanding how LGN inputs to V1 are organized. Here we report direct recordings from LGN afferent axons in muscimol-inactivated V1. We found that blue/yellow afferents terminated exclusively in superficial cortical layers 3B and 4A, whereas red/green afferents were encountered only in deeper cortex, in lower layer 4C. We also describe a distinct cortical target for ‘blue-OFF’ cells, whose afferents terminated in layer 4A and seemed patchy in organization. The more common ‘blue-ON’ afferents were found in 4A as well as lower layer 2/3. Chromatic information is thus conveyed to V1 by parallel, anatomically segregated colour-opponent systems, to be combined at a later stage of the colour circuit.

Suggested Citation

  • Soumya Chatterjee & Edward M. Callaway, 2003. "Parallel colour-opponent pathways to primary visual cortex," Nature, Nature, vol. 426(6967), pages 668-671, December.
  • Handle: RePEc:nat:nature:v:426:y:2003:i:6967:d:10.1038_nature02167
    DOI: 10.1038/nature02167
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    Cited by:

    1. Yujie Wu & Minghui Zhao & Haoyun Deng & Tian Wang & Yumeng Xin & Weifeng Dai & Jiancao Huang & Tingting Zhou & Xiaowen Sun & Ning Liu & Dajun Xing, 2024. "The neural origin for asymmetric coding of surface color in the primate visual cortex," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    2. Jérémie Sibille & Carolin Gehr & Jonathan I. Benichov & Hymavathy Balasubramanian & Kai Lun Teh & Tatiana Lupashina & Daniela Vallentin & Jens Kremkow, 2022. "High-density electrode recordings reveal strong and specific connections between retinal ganglion cells and midbrain neurons," Nature Communications, Nature, vol. 13(1), pages 1-18, December.
    3. Tian Wang & Weifeng Dai & Yujie Wu & Yang Li & Yi Yang & Yange Zhang & Tingting Zhou & Xiaowen Sun & Gang Wang & Liang Li & Fei Dou & Dajun Xing, 2024. "Nonuniform and pathway-specific laminar processing of spatial frequencies in the primary visual cortex of primates," Nature Communications, Nature, vol. 15(1), pages 1-16, December.
    4. Peichao Li & Anupam K. Garg & Li A. Zhang & Mohammad S. Rashid & Edward M. Callaway, 2022. "Cone opponent functional domains in primary visual cortex combine signals for color appearance mechanisms," Nature Communications, Nature, vol. 13(1), pages 1-19, December.

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