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| Open AccessDifferent spectral sensitivities of ON- and OFF-motion pathways enhance the detection of approaching color objects in Drosophila
Motion vision in many animals is split into pathways for bright (ON) and dark (OFF) edges, driven by luminance changes. Here the authors show how in Drosophila color selectively contributes to ON-motion, enhancing detection of saliently colored objects.
- Kit D. Longden
- , Edward M. Rogers
- & Michael B. Reiser
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Article
| Open AccessBirds multiplex spectral and temporal visual information via retinal On- and Off-channels
In mammals, the retina splits visual information into functionally opposite signals, but if this applies to birds is not known. Here, the authors show a different retinal functional organization in poultry chicks, where spectral and temporal information is multiplexed.
- Marvin Seifert
- , Paul A. Roberts
- & Tom Baden
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Article
| Open AccessThe olfactory gating of visual preferences to human skin and visible spectra in mosquitoes
Vision in mosquitoes plays a critical but understudied role in their attraction to hosts. Here, the authors show that encounter with an attractive odor gates the mosquito attraction to specific colors, especially the long wavelengths reflected from human skin. Filtering the long wavelengths reflected from the human skin or knocking-out the ability for the mosquito to detect the wavelengths, suppressed their attraction. This work transforms our understanding of mosquito vision from the conventional view that vision does little in mediating mosquito-host interactions, to the recognition that vision plays a critical role.
- Diego Alonso San Alberto
- , Claire Rusch
- & Jeffrey A. Riffell
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Article
| Open AccessTemporal dynamics of the neural representation of hue and luminance polarity
Hue (e.g. red, blue) and luminance polarity (light/dark) are basic visual features. This paper shows that the brain has both joint and separable representations of these features, and extracts hue approximately 20 milliseconds later, with a more sustained representation.
- Katherine L. Hermann
- , Shridhar R. Singh
- & Bevil R. Conway
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Article
| Open AccessChromatic micromaps in primary visual cortex
Stimulus feature maps are found in primary visual cortex of many species. Here the authors show color maps in trichromatic primates containing segregated ensembles of neurons with distinct chromatic signatures that associate with cortical modules known as blobs.
- Soumya Chatterjee
- , Kenichi Ohki
- & R. Clay Reid
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Article
| Open AccessNeural circuits in the mouse retina support color vision in the upper visual field
Mice are able to discriminate colors, at least in the upper visual field. Here, the authors provide a comprehensive characterization of retinal circuits underlying this behavior.
- Klaudia P. Szatko
- , Maria M. Korympidou
- & Katrin Franke
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Article
| Open AccessParadoxical impact of memory on color appearance of faces
What is the function of color vision? Here, the authors show that when retinal mechanisms of color are impaired, memory has a paradoxical impact on color appearance that is selective for faces, providing evidence that color contributes to face encoding and social communication.
- Maryam Hasantash
- , Rosa Lafer-Sousa
- & Bevil R. Conway
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| Open AccessAvian UV vision enhances leaf surface contrasts in forest environments
The utility of UV vision for visualizing habitat structure is poorly known. Here, the authors use optical models and multispectral imaging to show that UV vision reveals sharp visual contrasts between leaf surfaces, potentially an advantage in navigating forest environments.
- Cynthia Tedore
- & Dan-Eric Nilsson
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Article
| Open AccessThe representation of colored objects in macaque color patches
Neurons in the inferotemporal cortex (IT) encode object identity; however, how object color is represented here is not well understood. Here the authors report that neurons from three color patches in macaque IT encode significant information regarding the hue and shape of objects in a hierarchical manner.
- Le Chang
- , Pinglei Bao
- & Doris Y. Tsao
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Article |
Mineralized rods and cones suggest colour vision in a 300 Myr-old fossil fish
The evolution of the visual system in vertebrates remains poorly understood. Here, the authors show well-preserved rod and cone photoreceptors in a Upper Carboniferous fossilized fish, suggesting that colour vision has evolved in fish at least 300 Myr ago.
- Gengo Tanaka
- , Andrew R. Parker
- & Haruyoshi Maeda