Joint representations of color and form in mouse visual cortex described by random pooling from rods and cones.

ABSTRACT: Spatial transitions in color can aid any visual perception task, and its neural representation, the "integration of color and form," is thought to begin at primary visual cortex (V1). Integration of color and form is untested in mouse V1, yet studies show that the ventral retina provides the necessary substrate from green-sensitive rods and ultraviolet-sensitive cones. Here, we used two-photon imaging in V1 to measure spatial frequency (SF) tuning along four axes of rod and cone contrast space, including luminance and color. We first reveal that V1's sensitivity to color is similar to luminance, yet average SF tuning is significantly shifted lowpass for color. Next, guided by linear models, we used SF tuning along all four color axes to estimate the proportion of neurons that fall into cla

SUBMITTER: Rhim I 

PROVIDER: S-EPMC9988525 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature