Articles tagged with Color
Researchers have completed a detailed picture of human color vision evolution, tracing 7 genetic mutations and 5,040 pathways from UV to blue-light vision. The study clarifies molecular pathways at the chemical, genetic, and functional levels.
Researchers analyzed 5,040 evolutionary paths of human color vision, finding that 4,008 trajectories are terminated prematurely due to nonfunctional pigments. The study's findings emphasize the importance of understanding molecular evolution and genetic engineering in decoding protein mutations' effects.
The study reveals the presence of a weak iridescence in Tinamou eggs, creating superficial colors and color changes depending on angle and light. The researchers' investigation uncovers an ultra-smooth coating as the key to the eggshell's glossy appearance.
A new study published in Marketing Science reveals that ads can still convey their main message despite brief and blurred exposure to consumers. The study found that the color of central objects in ads plays a crucial role in rapid perception and 'ad cut through' under these conditions.
A new study from the University of Chicago found that female birds' color vision is essential for mate selection and sexual dimorphism. The research, published in the Proceedings of the Royal Society B, suggests that the expression of a specific opsin gene is linked to the evolution of colorful plumage in males.
Astronomers have combined traditional method with reverse engineering to improve accuracy in measuring distant galaxies. They calculated a robust distance measurement using near-infrared and visible-light photos, estimating a redshift of 10 for the galaxy.
Researchers found that low-density neighborhoods are more likely to stay integrated, while high-density areas become segregated. The study uses a mathematical model to simulate the movement of families between neighborhoods and shows that cities can quickly become segregated once a certain density threshold is reached.
Researchers discovered a unique population of neurons in the lateral intraparietal area that shift their sensitivity to color and direction based on what's being attended. This study provides new insights into how the brain combines visual information for decision-making and higher-order processes.
Researchers at Harvard-Smithsonian Center for Astrophysics propose that silicon-capped hydrocarbons like SiC3H, SiC4H and SiC5H may be responsible for the diffuse interstellar bands. The team analyzed laboratory spectra and theoretical calculations to support their hypothesis.
A study published in Personality and Social Psychology Bulletin found that women perceive a woman in red as more sexually receptive. In experiments, participants rated the woman in red as more attractive for sex and showed increased derogation towards her fidelity but not financial resources compared to white or green.
Researchers discovered mantis shrimp have optics generating ultraviolet color vision using mycosporine-like amino acids as built-in biological sunscreen filters. The complex eyes detect polarized colors and navigate through the reef without processing visual information in the brain.
Researchers at LMU Munich have developed a novel red phosphor material that significantly enhances the performance of white-emitting LEDs. The new material generates 14% more light than conventional white-light LEDs while maintaining an excellent color rendering index.
A recent study found that Caucasian male children have the highest prevalence of color blindness, with 1 in 20 testing color blind. Researchers also found that African-American males have the lowest rate of color blindness, and girls have a significantly lower prevalence than boys.
Researchers unveil SpectralFinder, a software that can record and analyze hyperspectral data in real-time on a mobile platform. The technology differentiates materials based on unique color spectra, enabling applications such as environmental monitoring and quality control.
Researchers at Hebrew U. show blind individuals can perceive colors, shapes, and object categories through non-invasive sensory aids, challenging traditional brain function understanding.
A new formula to calculate hue has been developed, providing accurate results for color analysis in biological studies. This improvement is crucial for research involving flower and fruit development, plant nutrient deficiencies, and responses to heat and drought stress.
A recent study published in Optometry and Vision Science reveals that nearly 40% of older adults experience color vision abnormalities. The most common type is the blue-yellow error, which can significantly impact daily functioning. Researchers attribute these changes to aging-related eye diseases and lens yellowing.
Researchers found wallabies have dichromatic colour vision like dogs, but lack a third colour-sensitive receptor. The 'Neutral Point' colour stimulates confusion in wallabies, unlike other marsupials.
Researchers at EPFL have discovered a method to fit pulses together within optical fibers, increasing the capacity by up to ten times. This approach reduces the unused empty space for data in the fiber, enabling faster and more reliable data transmission.
Researchers from Monash University and RMIT University found that Himalayan flowers evolved to attract bees as pollinators in response to bee colour vision. The study reveals the impact of climate change on plant-pollinator interactions in mountainous environments.
Researchers followed 80 child synesthetes over 4 years, observing development of strong associations for around 50% of graphemes by age 7. The study also found that some children's synesthesia disappears as they grow older, likely due to changes in brain organization.
Researchers at the University of Utah have created a polymer that emits light in multiple colors, including blue and red, and can be tuned to cover the entire visible spectrum. This breakthrough holds promise for more efficient and less expensive white organic LEDs, which could replace traditional light bulbs.
Researchers created ring-shaped complexes of protein and pigments that absorb more sunlight than natural ones. The designs use a combination of synthetic and natural pigments to capture a broader spectrum of light, allowing for efficient energy harvesting.
Researchers found that hypnotic suggestion can modify the processing of a targeted stimulus before it reaches consciousness, leading to true and automatic hallucinations. The study used EEG measurements and two highly hypnotizable participants who consistently reported color changes in response to suggested shapes.
Researchers have discovered a synthetic, high-performance polymer that improves efficiency by reducing electrical charge loss. The material's unique quantum mechanical property, electron 'spin,' enables it to 'rescue' charges from energy-losing pathways.
Researchers at Berkeley Lab and University of Wisconsin have developed a non-destructive 3D imaging technique that provides molecular-level chemical information. The technique, FTIR spectro-microtomography, combines Fourier Transform Infrared spectroscopy with computed tomography to create full-color 3D images with unprecedented detail.
A patient who suffered a stroke developed synesthesia, a neurological condition where people experience multiple senses at the same time. The patient's brain activity showed targeted and specific responses to certain stimuli, suggesting that his synesthesia was caused by cross-wiring in his brain after the injury.
Researchers found that cutlery can alter how we experience food, with weight and color affecting perceived density, saltiness, and sweetness. The study suggests that subtly changing eating implements and tableware can impact our enjoyment of food.
Researchers at Rice University have developed a novel approach to arrange metal nanoparticles in geometric patterns, enabling control of light with light. The breakthrough enables the creation of optical devices that can transform incoming light signals into output of a different color.
A study from the University of California, Berkeley suggests that humans share a common emotional palette when it comes to music and color. Participants consistently paired bright colors with upbeat music and dark colors with subdued music across different cultures.
Research by Sophie Wuerger found that colour perception remains largely unchanged over the years, despite age-related losses in the optical media. The study revealed that certain neural pathways compensate for these losses, allowing colour functions to remain constant across time.
Architected to tackle aquatic prey, archerfish possess exceptional resolving power in the upper part of their retina, far surpassing other freshwater fish. This impressive ability enables them to locate, identify, and accurately spit at aerial insects with remarkable precision.
Four new white peach varieties, White Delight series, are being released for production in nurseries this year, catering to growers in warmer climates. The three clingstone and one semi-freestone varieties ripen consecutively from late-May through mid-July with high-taste scores.
Certain Australian native flowers have shifted from using insects as pollinators and evolved flower colour to the red hues favoured by birds. The study found that bird-pollinated flowers have spectral signatures that are best discriminated by those birds.
Researchers from University of Southern Denmark used RICS technique to investigate liposome movement on skin. They found that liposomes are destroyed before entering the skin and spilling their cargo of active ingredients. The study advises against trusting claims about liposomes carrying active ingredients into the skin.
Research shows that when shapes are repeated in multiple locations with mixed color-shape associations, they are hard to perceive. This finding expands on previous work on feature integration in visual perception and provides new insights into how the brain encodes objects.
Researchers sequenced genes responsible for light-sensitive pigment in 40 bird species, revealing at least 14 shifts between violet and ultraviolet color vision. This evolution is driven by single nucleotide changes in DNA, resulting in unique visual adaptations among birds.
Researchers at the University of Michigan developed a new reflective color display technology that can lock in color and reduce power consumption. The technology uses nanoscale metallic grooves to funnel light into specific wavelengths, resulting in vibrant colors that remain true regardless of viewing angle.
A study published in PLOS ONE found that people judge men's trustworthiness based on face shape and eye color, with brown-eyed faces appearing more trustworthy than blue eyes. The researchers tested various combinations of eye color and face shape to determine which features contributed most to the perception of trustworthiness.
Researchers from Polytechnic University of Valencia and University of Oxford found that hot chocolate tastes better in orange or cream coloured cups. The study suggests that the colour of the container can influence consumers' perception of taste and aroma.
Research reveals that black dahlia flowers accumulate more anthocyanins due to low flavone concentrations, leading to their distinctive dark color. This finding could be used to engineer plants with tailored flavone contents, as the suppression of flavone formation is an effective mechanism.
A University of California, Berkeley researcher found that people are more likely to assign positive personality traits to orange cats and less favorable ones to white and tortoiseshell cats. The results suggest that cat color stereotypes can have a negative impact on adoption rates at animal shelters.
Researchers found that men have a greater sensitivity to fine detail and rapidly moving stimuli, while women excel at distinguishing colors. This difference is attributed to the presence of more neurons in the visual cortex of males.
A new study found that prenatal and early childhood exposure to the chemical solvent tetrachloroethylene (PCE) may be associated with poorer color-discrimination abilities. People exposed to higher levels of PCE from gestation through age 5 exhibited greater visual impairments, suggesting irreversible effects.
Researchers at Brown University found that training can improve recognition of rapidly presented objects by making the second target object a distinct color. This allows people to switch their attention more quickly and perceive the second target as effectively as a fifth of a second later.
A team at NIST has developed a method to calibrate and optimize color-based imaging techniques for medical applications. This enhancement enables surgeons to detect specific cell types with improved accuracy. The NIST effort is part of a larger initiative to evaluate and validate optical medical imaging devices.
Researchers at Polytechnic University of Valencia analyze the use of color in modern architecture, identifying four concepts: transformation, fragmentation, movement, and innovation. Chromatic versatility transforms buildings through changing appearance and perception.
Tropical Cyclone Jasmine has a 20nautical mile-wide eye visible in NASA imagery passing between Vanuatu and New Caledonia. Forecasters predict peak wind speed reached and weakening over the week.
Researchers developed a nanoparticle microfluidic color device for rapid detection of acute sepsis and other biomarkers, offering improved accuracy and speed in medical diagnostics. The device boasts high sensitivity and can detect minute quantities of biomolecules, making it a promising solution for point-of-care diagnostics.
Researchers created an organic LED light with a warm white color near point A and high color stability by adjusting layer heights. The final OLED has improved performance compared to traditional incandescent bulbs.
Researchers found that using high-contrast colors on plates reduced serving sizes by 21%, while changing tablecloth color had a smaller impact. The 'Delboeuf illusion' plays a role in this phenomenon, where people perceive larger portions when served on larger plates.
Scientists at the University of Hull found that highly suggestible individuals can see colours in monochrome patterns and experience changes in brain activity under hypnosis. The study suggests that these abilities exist independently of hypnosis and may be useful for medical interventions, such as pain control.
Researchers find synesthesia is an authentic phenomenon with sensory basis, common among artists and novelists. The 'synesthesia gene' may have evolved to make highly creative individuals more prone to link unrelated ideas.
Researchers have found that the brain uses a more complex process to perceive lightness than previously thought. They conducted an experiment where participants viewed images with high ranges of light intensities and reported what shades of gray a target square looked like.
The new superlattice cameras can detect multiple infrared wavelengths simultaneously, enabling real-time chemical spectroscopy and enhanced image processing. These advancements offer unique functionalities beyond color representation, making them an attractive technology for various applications.
Researchers identified a mechanism for regulating color vision by studying the fly's visual system, showing that Rhodopsins can prevent incorrect gene expression and maintain color discrimination. The findings also offer insights into how genes controlling color detection are turned on and off.
The University of California, Riverside has received a three-year NSF grant to establish the FORWARD project, aiming to recruit, retain and develop leadership skills of women faculty in STEM disciplines. The program will also create a statewide network for professional and personal support.
NASA satellites have been monitoring Hurricane Katia's transition, capturing clear images of its cloud patterns and spiral shape characteristic of strong storms. The storm has undergone eyewall replacement, with a double-eyewall formation indicating it is likely to maintain major hurricane status.
A study from the University of Miami School of Business found that firms with more colorful annual reports are perceived to have higher annual revenues. This is because investors experience a sense of pride of ownership when presented with attractive reports, leading to increased valuation.
A clinical trial led by Newcastle University found that the drug idebenone improved vision and perception of color in patients with LHON, a condition causing inherited blindness. In nine out of 36 patients taking idebenone, vision improved to the point where they could read at least one row of letters on a chart.