Extensive cone-dependent spectral opponency within a discrete zone of the lateral geniculate nucleus supporting mouse color vision.

ABSTRACT: Color vision, originating with opponent processing of spectrally distinct photoreceptor signals, plays important roles in animal behavior.^1-4 Surprisingly, however, comparatively little is understood about color processing in the brain, including in widely used laboratory mammals such as mice. The retinal gradient in S- and M-cone opsin (co-)expression has traditionally been considered an impediment to mouse color vision.^5-8 However, recent data indicate that mice exhibit robust chromatic discrimination within the central-upper visual field.⁹ Retinal color opponency has been reported to emerge from superimposing inhibitory surround receptive fields on the cone opsin expression gradient, and by introducing opponent rod signals in retinal regions with sparse

SUBMITTER: Mouland JW 

PROVIDER: S-EPMC8360768 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature