Color discrimination thresholds in a cichlid fish: Metriaclima benetos.

ABSTRACT: Color vision is essential for animals as it allows them to detect, recognize and discriminate between colored objects. Studies analyzing color vision require an integrative approach, combining behavioral experiments, physiological models and quantitative analyses of photoreceptor stimulation. Here, we demonstrate, for the first time, the limits of chromatic discrimination in Metriaclima benetos, a rock-dwelling cichlid from Lake Malawi, using behavioral experiments and visual modeling. Fish were trained to discriminate between colored stimuli. Color discrimination thresholds were quantified by testing fish chromatic discrimination between the rewarded stimulus and distracter stimuli that varied in chromatic distance (ΔS). This was done under fluorescent lights alone and with additional vio

SUBMITTER: Escobar-Camacho D 

PROVIDER: S-EPMC6765173 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature