True S-cones are concentrated in the ventral mouse retina and wired for color detection in the upper visual field.

Although the true S-cone signals carried by SCBCs in the dorsal retina might not be significant for color detection, they could certainly participate in other functions, such as non-image forming vision, that are known to involve short-wavelength signals ( Altimus et al., 2008 ; Doyle et al., 2008 ; Patterson et al., 2020 ).

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