Color Vision Current Events

Color Vision Current Events, Color Vision News Articles.
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Scientists find color vision system independent of motion detection
The vision system used to process color is separate from that used to detect motion, according to a new study by researchers at New York University's Center for Developmental Genetics and in the Department of Genetics and Neurobiology at Germany's University of Wuerzburg. (2008-03-19)

Little understood cell helps mice see color
Researchers at the University of Colorado Anschutz Medical Campus have discovered that color vision in mice is far more complex than originally thought, opening the door to experiments that could potentially lead to new treatments for humans. (2017-12-14)

Researchers find that color perception is not innate, but acquired after birth
Rearing experimental animals under special illumination, researchers have found new evidence that early visual experience is indispensable for the development of normal color perception. (2004-07-26)

Giant pandas see in color
They may be black and white, but new research at the Georgia Institute of Technology and Zoo Atlanta shows that giant pandas can see in color. Graduate researcher Angela Kelling tested the ability of two Zoo Atlanta pandas, Yang Yang and Lun Lun, to see color and found that both pandas were able to discriminate between colors and various shades of gray. The research is published in the journal Learning and Behavior, volume 34 issue 2. (2006-10-13)

Evidence for expanded color vision for some colorblind individuals
Some forms of colorblindness may actually afford enhanced perception of some colors, according to findings reported this week in Current Biology by John Mollon and colleagues at the University of Cambridge. (2005-12-05)

Shedding light on the origin of primate color vision
Researchers at the University of Chicago have found evidence that trichromatic or full color vision originated in prosimians, a group of lemurs, Bush Babies and pottos rather than in higher primates, pushing the origin of primate color vision back roughly 20 million years. (1999-11-03)

Researchers pinpoint how detecting social signals may have affected how we see colors
The arrangement of the photoreceptors in our eyes allows us to detect socially significant color variation better than other types of color vision, a team of researchers has found. (2017-06-13)

Behavioral studies show UV contributes to marsupial color vision
Work reported this week provides new evidence that marsupials, like primates, have functional color vision based on three different types of color photoreceptor cones -- but unlike primates, a component of marsupial color vision includes sensitivity to ultraviolet wavelengths. In the study, researchers employed behavioral tests to show that at least one type of marsupial uses its detection of UV light as part of its ability to discriminate between colors. (2006-03-20)

NYU scientists set stage for understanding how color vision is processed
New York University biologists have mapped the medulla circuitry in fruit flies, setting the stage for subsequent research on how color vision is processed. The work, which appeared in the journal Current Biology, will allow future scholarship to explore how color vision is processed in the optic lobe of the fruit fly Drosophila, providing a paradigm for more complex systems in vertebrates. (2008-03-25)

Tarsiers' bulging eyes shed light on evolution of human vision
After eons of wandering in the dark, primates developed highly acute, three-color vision that permitted them to shift to daytime living, a new Dartmouth College study suggests. (2013-03-27)

Thyroid hormone regulates development of color vision
By growing human retinal tissue from stem cells, researchers have determined how the various types of cells that enable people to see colors develop. (2018-10-11)

Which came first: Primates' ability to see colorful food or see colorful sex?
Primates have a unique ability to distinguish red from green, but the reason why has been debated: Was it first to see ripe red fruit against green leaves or was it first the mating systems that communicate through red in skin and hair? This study incorporated evolutionary relationships among 203 primate species to show the sequential evolution of color vision, skin color, fur color and mating systems, and found that foraging came first. (2007-06-25)

Color vision drove primates to develop red skin and hair, study finds
You might call it a tale of (2007-05-24)

Which piece resembles your color perception for #theDress image?
A novel algorithm to simulate the color appearance of objects under chromatic illuminants has been proposed by Ichiro Kuriki of Tohoku University. (2018-03-22)

How turtles and crocodiles lost parietal eye and differing color vision adaptations
University of California zoologist Christopher Emerling has traced back 200 million years of eye evolution in turtles and crocodiles and contributed to a new understanding of color vision. It turns out that some turtles have reduced their color vision during their adaptation to fresh water and crocodiles have 'reinvented' vertebrate color vision for their nocturnal habits. (2016-12-08)

Scientists from the University of Granada debunk the effectiveness of glasses for colorblind people
The EnChroma® glasses, commercialized by a North American company, do not improve color vision for color blind people or correct their color blindness, and their effect is similar to that of other glasses such as the ones used for hunting. (2018-10-26)

Color vision variation in guppies influences female mate preference
A variety of animals have male-specific ornament traits and these ornaments are favored by female choice. Which male traits are preferred by females often varies among females. Genetic mechanisms that create and maintain variations in female preference has been one of the central questions in evolutionary ecology. (2018-11-19)

Multiple genes permit closely related fish species to mix and match their color vision
Vision is shaped by evolution through environmental pressures and demands, and even closely-related species that might respond to their particular environments by interpreting the visual world slightly differently. By studying a special group of closely-related fish species inhabiting the Great Lakes of Africa, researchers have uncovered clues to understanding how the components of color vision can undergo change over a relatively short period of evolutionary time. (2005-10-10)

Caterpillars of the peppered moth perceive color through their skin
It is difficult to distinguish caterpillars of the peppered moth from a twig. The caterpillars not only mimic the form but also the color of a twig. In a new study, researchers of Liverpool University in the UK and the Max Planck Institute for Chemical Ecology in Germany demonstrate that the caterpillars can sense the twig's color with their skin. (2019-08-02)

Important brain area organized by color and orientation
A brain area known to play a critical role in vision is divided into compartments that respond separately to different colors and orientations, Vanderbilt University researchers have discovered. The findings have important implications for furthering our understanding of perception and attention. (2010-11-15)

Map makers can avoid confusing the color blind
For 8 percent of men, color blindness is not just a fashion inconvenience, but an impairment that makes reading maps and other visual data difficult if not impossible. Now, a Penn State geographer has developed color schemes that allow most color-blind people to interpret the images. (2000-04-24)

Pioneers in field of functional genomics work toward gene therapy for vision defects
For millennia anglers have wondered how fish see colors, and the rainbow of lures in every bait shop reveal that we're still guessing. But, in fish, reptiles and birds, that's all we can do for now, according to husband and wife vision researchers, Drs. Jay and Maureen Neitz at the Medical College of Wisconsin in Milwaukee. (2006-12-11)

Discovery of a simplest mechanism for color detection
Color vision, ocular color detection is achieved with complicated neural mechanisms in the eyes. Researchers from the Osaka City University in Japan have found color detection with a simplest mechanism in the fish pineal organ, an extraocular photosensitive organ on the brain surface. (2018-10-15)

Study finds that special filters in glasses can help the color blind see colors better
A new UC Davis Eye Center study, conducted in collaboration with France's INSERM Stem Cell and Brain Research Institute, found that special patented glasses engineered with technically advanced spectral notch filters enhance color vision for those with the most common types of red-green color vision deficiency ('anomalous trichromacy'). Notably, the ability to identify and experience expanded color was also demonstrated when color blind test subjects were not wearing the glasses. (2020-07-13)

Fifteen shades of photoreceptor in a butterfly's eye
The eyes of an Australasian butterfly contain a record fifteen classes of light-detecting photoreceptors, six more than any other insect and far more than necessary for color vision. (2016-03-08)

Female color perception affects evolution of male plumage in birds
The expression of a gene involved in female birds' color vision is linked to the evolution of colorful plumage in males, reports a new study from the University of Chicago. The findings, published Nov. 26 in the Proceedings of the Royal Society B, confirm the essential role of female color perception in mate selection and sexual dimorphism. (2014-11-25)

The fine-tuning of human color perception
The evolution of trichromatic color vision in humans occurred by first switching from the ability to detect UV light to blue light (between 80-30 MYA) and then by adding green-sensitivity (between 45-30 MYA) to the preexisting red-sensitivity in the vertebrate ancestor. The detailed molecular and functional changes of the human color vision have been revealed by Shozo Yokoyama et al. of Emory University and is published in the journal PLOS Genetics. (2014-12-18)

A new perceptually-consistent method for MSI visualization
Skoltech scientists have proposed a Mass Spectrometry Imaging (MSI) method leveraging the unique features of human vision (2021-02-11)

Color is in the eye of the beholder
The unique makeup of the cells in our retina, as well as the specific physical properties of substances themselves, explain why we occasionally see things change color before our very eyes! Samo and Marko Kreft from the University of Ljubljana in Slovenia investigated this phenomenon using pumpkin seed oil as an example. They have just published their research online in Springer's journal Naturwissenschaften. (2007-07-03)

New technique improves accuracy of computer vision technologies
Researchers have developed a new technique that improves the ability of computer vision technologies to better identify and separate objects in an image, a process called segmentation. (2016-06-20)

NASA satellite highlights burn scars in British Columbia
This past summer Canada has been plagued with huge forest fires that have spanned most of the provinces. British Columbia has been particularly hard hit with large portions of the landscape being decimated by fire. In these satellite images taken by the NASA'S Aqua satellite, both the natural color and false color burn scars of left by fires can be seen. (2017-09-29)

Jumping spiders are masters of miniature color vision
Jumping spiders were already known to see in remarkably high resolution, especially considering that their bodies are less than a centimeter long. Now, researchers reporting in the Cell Press journal Current Biology on May 18 have figured out how spiders in the colorful genus Habronattus see in three color 'channels,' as most humans do. (2015-05-18)

Chameleon-inspired structural color soft robot can interact with environment
A novel structural color soft robot with both color-changing and locomotion capabilities has been developed by a research team led by Dr. DU Xuemin from the Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences. (2019-07-31)

A new system for color vision
The swirling skies of Vincent Van Gogh's Starry Night illustrate a mystery that has eluded biologists for more than a century -- why do we perceive the color blue in the dimly lit night sky? A newly discovered mechanism of color vision in mice might help answer this question, Caltech researchers say. (2016-04-14)

Study shows that color plays musical chairs in the brain
The brain's neural mechanisms keep straight which color belongs to what object, so one doesn't mistakenly see a blue flamingo in a pink lake. But what happens when a color loses the object to which it is linked? Research shows for the first time, that instead of disappearing along with the lost object, the color latches onto a region of some other object in view -- a finding that reveals a new basic property of sight. (2009-10-01)

Researchers measure the basis of color vision
Dr. Wolf M. Harmening from University Eye Hospital Bonn, together with American colleagues, studied color vision by probing individual sensory cells in the human eye. The results confirm that the photoreceptor cells of the retina are especially sensitive to colors corresponding to their visual pigments, even when stimulated in isolation. A new observation is that proximity effects play a key role: sensitivity varied depending on which cell classes were located in the immediate neighborhood. (2017-09-06)

Disruption of glucose transport to rods and cones shown to cause vision loss in RP
Ophthalmology researchers at the University of Louisville have discovered the loss of vision in RP is the result of a disruption in the flow of nourishing glucose to the rods and cones. This disruption leads to the starvation of the photoreceptors. In addition, the failure in glucose metabolism in RP is similar to changes seen in lung cancer. (2019-07-30)

Female lemurs with color vision provide advantages for their group
Female lemurs with normal color vision, as well as their cohabitating colorblind group members, may have selective advantage over lemur groups whose members are all colorblind, according to anthropologists at The University of Texas at Austin. (2016-12-05)

Accessible color palettes: New tool for web designers
More than 20 percent of people who use the web can't always tell the difference between shades of colors -- but very few of them are colorblind, according to a University of Michigan researcher. (2016-05-12)

A clear, molecular view of how human color vision evolved
Many genetic mutations in visual pigments, spread over millions of years, were required for humans to evolve from a primitive mammal with a dim, shadowy view of the world into a greater ape able to see all the colors in a rainbow. Now, after more than two decades of painstaking research, scientists have finished a detailed and complete picture of the evolution of human color vision. (2014-12-18)

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