... diurnal lineages. The numbers were significantly more than those inferred from neutral evolution, suggesting that positive selection acted on these parallel substitutions. Moreover, we predicted the visual pigment absorption spectra based on electrophysiologically determined spectral sensitivity in two...

...Amy Streets; Hayley England; Justin Marshall ABSTRACT Stomatopod crustaceans, or mantis shrimps, are known for their extensive range of spectral sensitivity but relatively poor spectral discrimination. Instead of the colour-opponent mechanism of other colour vision systems, the 12 narrow-band...

... pigments, cone oil droplets, ocular media and predicted spectral sensitivity in the domestic turkey ( Meleagris gallopavo ) . Vision Res. 39 , 3321 - 3328 . 10.1016/S0042-6989(99)00071-1 Hart , N. S. , Partridge , J. C. , Bennett , A. T. D. and Cuthill , I. C. ( 2000a...

...: Jewel beetles have an irregular retinal mosaic of randomly rotated and mirror-symmetric ommatidia, housing at least four spectral classes of photoreceptors. Jewel beetle Compound eye Spectral sensitivity Polarization sensitivity Retinal mosaic Jewel beetles (Coleoptera: Buprestidae...

... revealed that the UV and B receptors are R1 and R2, while the G class receptors are R5–R8 also as observed in other butterflies. No information was obtained for R9 receptors. Fig. 5. Spectral sensitivity, polarization sensitivity and dye-injected images of P. sita photoreceptors . Spectral...

... their function. Here, we present electroretinogram recordings from the radiolar eyes of the fan worm Acromegalomma vesiculosum . We examine their spectral sensitivity along with their dynamic range and temporal resolution. Our results show that they possess one class of photoreceptors with a single visual...

...., D.I.S. Summary: Morphological, physiological and behavioral approaches demonstrate for the first time that the eyes of snapping shrimp provide spatial vision. Electroretinography Microspectrophotometry Optomotor Orbital hood Spectral sensitivity Visual ecology The visual...

...., 1983 ), Opn5A and xenopsin are candidates based on the expression level in the brain ( Fig. 4 B; Matsuo et al., 2019 ). We observed in our preliminary experiment that the peak of the spectral sensitivity of Opn5A is at a longer wavelength than that of xenopsin and rhodopsin (R.M., unpublished...

... a considerable impact on spectral sensitivity, highlighting the need to incorporate this type of measurement into the design of stimuli for experiments on visual function. We quantified the effect of OMT on frog spectral sensitivity by using the transmittance spectra measured here to correct...

.../ Summary: In the compound eye of the American cockroach, complex electrical interactions take place between green- and UV-sensitive photoreceptors in each ommatidium. Cockroach RNA interference Ephaptic interactions Spectral sensitivity Opsin In nervous systems, electrical communications...

... in the medulla that showed prominent spiking were classified as L3/4. The majority of LMCs of both types had broad spectral sensitivities, peaking between 480 and 570 nm. Depending on the experimental conditions, spikes varied from small to action potential-like events, with their amplitudes and rates decreasing...

.../ Summary: Polarisation vision in the moths is not confined to the dorsal rim area; the retina of Crambid, Noctuid and Saturniid moths and some dung beetles contains distal photoreceptors with extremely high polarisation sensitivity. Moth retina Spectral sensitivity Polarisation sensitivity...

... varying across the retina. Spectral sensitivity, which affects both achromatic and chromatic (colour) vision, also varies across the retina, though the function of this inhomogeneity is less clear. We previously demonstrated spatially varying spectral sensitivity of double cones in the cichlid fish...

... responses to equi-quantal monochromatic light flashes of different wavelengths, and established V log I relationships to calculate spectral sensitivities. Based on opsin template fits, we found maximal spectral sensitivity (λ max ) in the green domain at 539 nm. Application of a green light to ‘bleach...

... behind the tapetum upon dark adaptation. Vision Raman spectroscopy Nanocrystals Spectral sensitivity Jumping bristletail Insect The structure and function of compound eyes in crustaceans and insects has been the subject of intense study over the last 120 years (e.g. Exner, 1891...

... of the locust. In addition to previously characterized opsins of long-wavelength-absorbing (Lo1) and blue-absorbing visual pigments (Lo2), we identified an opsin of an ultraviolet-absorbing visual pigment (LoUV). DRA photoreceptors exclusively expressed Lo2, had peak spectral sensitivities at 441 nm and showed...

... sensitivities of the photoreceptors are rather simple, and peak in the ultraviolet, blue and green wavelength regions. The ommatidia have neither perirhabdomal nor fluorescent pigments, which modulate photoreceptor spectral sensitivities in a number of other butterfly species. These features are primitive...

.... The pigment color is red in all ommatidial types except for type II ommatidia of females, where the pigment is orange. Intracellular recordings demonstrated that the spectral sensitivities of the proximal photoreceptors (R5–8) of all ommatidia in both sexes are strongly tuned by the perirhabdomal pigments...

... reliability may be obtained at the expense of temporal resolution: the corner frequencies of dark-adapted ocellar photoreceptors were just 4–11 Hz. Spectral sensitivity profiles consistently peaked at 500 nm. Unlike the ocelli of other flying insects, we did not detect UV-sensitive visual pigments in M...

... 2010. 2010 spectral sensitivity polarization sensitivity Salmoninae Atlantic salmon electroretinogram compound action potentials cone photoreceptors ultraviolet sensitivity Polarization sensitivity is a visual attribute of many teleost species ( Flamarique and Hawryshyn, 1998...