Color vision
The Causes and Consequences of Color Vision
... human vision has recently become practical with the use of ...into color codes based on human ...with color vision perception very different from ...behavioral color discrimination ...
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The Molecular Genetics and Evolution of Red and Green Color Vision in Vertebrates
... UMAN color vision is achieved through three mainly by A180/F277/A285 (amino acids A, F, and A types of photosensitive molecules: short wave- at sites 180, 277, and 285, following the amino acid site length- ...
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<p>Impact of congenital color vision defect on color-related tasks among schoolchildren in Durban, South Africa</p>
... Children with CCVD in this study encountered more dif fi culties performing color-related tasks than their nor- mal color vision counterparts. This can be an impediment in certain subjects, especially ...
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Quantification and Standardized Description of Color Vision Deficiency Caused by Anomalous Trichromats—Part II: Modeling and Color Compensation
... quantifies color vi- sion for anomalous trichromats, based on error scores us- ing a computerized hue test ...in color vision. In Part II of our study, we discuss color compensation for ...
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Color vision and learning in the monarch butterfly, Danaus plexippus (Nymphalidae)
... pigment-mediated color vision in the long-wavelength range, as this is the only explanation of the results of our dual-choice experiment using 589 vs 620nm narrow-band filters ...Monarch color space ...
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Nocturnal light environments and species ecology: implications for nocturnal color vision in forests
... the color of light in terrestrial diurnal and twilight environments has been well documented, relatively little work has examined the color of light in nocturnal ...nocturnal vision, particularly ...
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Diminution of Blue Color Vision in Type II Diabetes
... of color vision in diabetics with sample size of 78 individuals (126 eyes) and 64 healthy individuals were selected as healthy controls ...that color defects appear at early stages in diabetes and ...
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Behavioral color vision in a cichlid fish: Metriaclima benetos
... Quantum catches are based on the seven opsins present in cichlids, and use the MSP spectral sensitivities of M. benetos (SWS1, RH2B and RH2A α ) and of the closely related species Metriaclima zebra (SWS2B, SWS2A, RH2A β ...
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The Molecular Genetics of Red and Green Color Vision in Mammals
... traction. Anal. Biochem. 162: 156–159. Mollon, J. D., J. K. Bowmaker and G. H. Jacobs, 1984 Variations Dartnall, H. J. A., and J. N. Lythgoe, 1965 The spectral clustering of color vision in a New World ...
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Alterations of color vision and central visual field in patients with Vogt−Koyanagi−Harada syndrome
... Hereditary color vision defects were carefully inquired in each patient and no color vision defects were reported by any of ...the color vision and visual field values, such as a ...
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Locating and identifying sound knots and dead knots on sugi by the rule-based color vision system
... a color vision system for detecting sound and dead knots on ...rule-based color vision system is an efficient means of detecting sound knots and dead knots on ...
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Changes in color vision with decreasing light level: separating the effects of normal aging from disease.
... [1,40,41]. Color vision thresholds are also affected at lower light levels in normal subjects and particularly the detection of YB color differences ...in color thresholds and this makes it ...
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Oblique color vision in an open habitat bird: spectral sensitivity, photoreceptor distribution and behavioral implications
... Color vision is not uniform across the retina because of differences in photoreceptor density and ...achromatic vision in the Canada goose (Branta canadiensis), which possesses an oblique rather than ...
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Acquired color vision and visual field defects in patients with ocular hypertension and early glaucoma
... The color vision testing was always performed for each eye separately using the best corrected refraction for short sight under specifi c lighting (daylight) conditions and at 45° to the plate ...
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Multidimensional scaling of D15 caps: Color vision defects among tobacco smokers?
... examine color vision in smokers, working within a long-standing research tradition in which the variations among observers are probed by asking them to assess the dissimilarities they perceive among ...
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Accessible maps for the color vision deficient observers: past and present knowledge and future possibilities
... 1983), color is considered a key element in cartography. Further, color is considered to be an undoubted attribute to guide attention, helping the map reader extract ...with color vision ...
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Prevalence of color vision deficiency among school children in Wolkite, Southern Ethiopia
... Colour vision deficiency is the commonest disorders of vision and undiagnosed colour vision defect could pose a handicap to the performance of an affected ...underwent color vision ...
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Assessing the Severity of Color Vision Loss with Implications for Aviation and other Occupational Environments
... cone contrasts generated and this suggests that the magnitude of the measured thresholds may provide a good indicator of the severity of color vision loss. There are a number of other interesting ...
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Functional diversity in the color vision of cichlid fishes
... The cichlid fishes of Lake Malawi are an excellent model system for examining large-scale variation in color vision. Lake Malawi has 700-800 species of cichlids [12-14] that have evolved from a common ...
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Evaluation of an updated HRR color vision test
... In our experience, the priorities for what people want to know from a color vision test are the presence or absence of a color deficiency and its severity. An inadequacy of the original HRR, which is ...
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