... the electroretinogram (ERG), while the spatial resolution was calculated utilizing morphological methods. Both O. quadrata and A. pisonii had a single dark-adapted spectral sensitivity peak (494 and 499 nm, respectively) and chromatic adaptation had no effect on their spectral sensitivity, indicating that both species...

... a multilevel experimental approach to assess whether circadian rhythms modulate several aspects of the visual physiology and behavior of the praying mantis Hierodula patellifera . We used electroretinograms (ERGs) to assess compound eye sensitivity, colorimetric photographic analyses to assess compound eye...

... of these two photoreceptor types in the behaviour of Spirocodon , the electroretinogram (ERG) of the ocelli was measured. The results described here are basically similar to those obtained from Sarsia ocelli ( Weber, 1982 ), the only coelenterate photoreceptors investigated to date, but there are some...