Behavioural evidence of spectral opponent processing in the visual system of stomatopod crustaceans.

ABSTRACT: Stomatopods, commonly known as mantis shrimps, possess intricate colour vision with up to 12 photoreceptor classes arranged in four specialised ommatidia rows (rows 1-4 in the midband region of the eye) for colour perception. Whereas 2-4 spectral sensitivities suffice for most visual systems, the function and mechanism behind stomatopods' 12-channel colour vision remains unclear. Previous anatomical and behavioural studies have suggested that binning and opponent processing mechanisms may coexist in stomatopod colour vision. However, direct evidence of colour opponency has been lacking. We hypothesised that if colour opponency exists in stomatopod vision, they would be able to distinguish colour from grey under coloured illumination. Conversely, if only the binning system is used, they wou

SUBMITTER: Wang CJ 

PROVIDER: S-EPMC11744319 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature