The dual rod system of amphibians supports colour discrimination at the absolute visual threshold
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DOI: 10.1098/rstb.2016.0066
Abstract: The presence of two spectrally different kinds of rod photoreceptors in amphibians has been hypothesized to enable purely rod-based colour vision at very low light levels. The hypothesis has never been properly tested, so we… read more here.
Keywords: absolute visual; colour discrimination; visual threshold; rod ... See more keywords