期刊
SCIENCE
卷 364, 期 6447, 页码 1275-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaw5868
关键词
-
资金
- NIH [EY022577, NS105129, EY028084]
- Gatsby Charitable Trust
- Pioneer Fund
Previous studies support the textbook model that shape and color are extracted by distinct neurons in primate primary visual cortex (V1). However, rigorous testing of this model requires sampling a larger stimulus space than previously possible. We used stable GCaMP6f expression and two-photon calcium imaging to probe a very large spatial and chromatic visual stimulus space and map functional microarchitecture of thousands of neurons with single-cell resolution. Notable proportions of V1 neurons strongly preferred equiluminant color over achromatic stimuli and were also orientation selective, indicating that orientation and color in V1 are mutually processed by overlapping circuits. Single neurons could precisely and unambiguously code for both color and orientation. Further analyses revealed systematic spatial relationships between color tuning, orientation selectivity, and cytochrome oxidase histology.
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