New research has uncovered an intriguing advantage human vision has over that of our monkey cousins.
Thanks to small differences in the structure of the retina, our eyes are able to perceive a greater range of blue tones.
"Here, we compare the synaptic connectome for a color-coding circuit in the human retina with the comparable circuits in both marmoset and macaque monkeys,""We discover a circuit in humans that is absent in marmosets and show further that for the human retina synaptic motifs do not follow the canonical architecture established in macaque monkeys.", which forms a dimple in the retina at the back of the eye that's packed with light sensitive cells shaped like tiny cones.
"Our results may help to explain why some aspects of human color perception are not well predicted from physiological studies of the macaque monkey visual system,"As they're so closely related to us, monkeys are often used in sight studies, but this new research adds certain caveats that should be considered when trying to apply the results of these studies to human beings.
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