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Color vision

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Color vision is the ability of an organism or machine to distinguish objects based on the wavelengths (or frequencies) of the light they reflect, emit, or transmit. [1]

141 relations: Achromatopsia, Adobe Photoshop, Amphibian, Animal, Australian sea lion, Bee, Bevil Conway, Bird, Bird vision, Blob (visual system), Blue, Blue-green, Brain, Bumblebee, Butterfly, Cataract surgery, Catarrhini, Centroid, Chromaticity, Chromosome, CIE 1931 color space, Color, Color balance, Color blindness, Color constancy, Color space, Color theory, Columbidae, Complementary colors, Cone (topology), Cone cell, David H. Hubel, Dichromacy, Dispersive prism, Diurnality, Edwin H. Land, Encyclopædia Britannica, Euclidean space, Eutheria, Evolution of color vision in primates, Ewald Hering, Eye, Fat-tailed dunnart, Frequency, Gecko, Gene duplication, Glob (visual system), Green, Herbivore, Hermann von Helmholtz, ..., Hilbert space, Himba people, Hominidae, Honey bee, How the Mind Works, Howler monkey, Hue, Human, Hummingbird, Hymenoptera, ICC profile, Ideasthesia, Insect, Invertebrate, Inverted spectrum, Isaac Newton, John Locke, John Wiley & Sons, Just-noticeable difference, Lateral geniculate nucleus, Light, List of light sources, Locus (mathematics), Mammal, Mantis shrimp, Marine mammal, Marsupial, Mesopic vision, Molecular electronic transition, Monochromacy, Nanometre, Nectar, New World monkey, Night monkey, Nocturnality, Occipital lobe, Oil droplet, OPN1LW, OPN1MW, Opponent process, Opsin, Optic chiasm, Optic nerve, Optic tract, Osmia bicornis, Papilio, Pentachromacy, Philosophical Transactions of the Royal Society B, Photopic vision, Photopigment, Polymorphism (biology), Primary color, Psychophysics, Purkinje effect, Purple, Red, Reflection (physics), Reptile, Retina, Retinal ganglion cell, RGB color model, Rod cell, Scotopic vision, Semir Zeki, Simplex, Spectral color, Spectral sensitivity, Steven Pinker, Synapse, Synesthesia, Temporal lobe, Tetrachromacy, Thalamus, The dress, Thomas Young (scientist), Torsten Wiesel, Transmittance, Trichromacy, Tropical fish, Two-streams hypothesis, Ultraviolet, Ultraviolet–visible spectroscopy, Vector space, Violet (color), Visual cortex, Visual perception, Wavelength, White point, X-inactivation, Yellow, Young–Helmholtz theory. Expand index (91 more) »

Achromatopsia

Achromatopsia (ACHM), also known as total color blindness, is a medical syndrome that exhibits symptoms relating to at least five conditions.

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Adobe Photoshop

Adobe Photoshop is a raster graphics editor developed and published by Adobe Systems for macOS and Windows.

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Amphibian

Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia.

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Animal

Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.

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Australian sea lion

The Australian sea lion (Neophoca cinerea) also known as the Australian sea-lion or Australian sealion, is a species of sea lion that is the only endemic pinniped in Australia.

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Bee

Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the European honey bee, for producing honey and beeswax.

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Bevil Conway

Bevil Conway (born 4 November 1974, in Harare, Zimbabwe) is a neuroscientist and artist.

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Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Bird vision

Vision is the most important sense for birds, since good eyesight is essential for safe flight, and this group has a number of adaptations which give visual acuity superior to that of other vertebrate groups; a pigeon has been described as "two eyes with wings".

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Blob (visual system)

Blobs are sections of the visual cortex where groups of neurons that are sensitive to color assemble in cylindrical shapes.

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Blue

Blue is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model.

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Blue-green

Blue-green/bottle green is a color that is a representation of the color that is between green and blue on a typical traditional old-fashioned RYB color wheel.

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Brain

The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals.

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Bumblebee

A bumblebee (or bumble bee, bumble-bee or humble-bee) is any of over 250 species in the genus Bombus, part of Apidae, one of the bee families.

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Butterfly

Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths.

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Cataract surgery

Cataract surgery is the removal of the natural lens of the eye (also called "crystalline lens") that has developed an opacification, which is referred to as a cataract.

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Catarrhini

Catarrhini is one of the two subdivisions of the simians, the other being the plathyrrhine (New World monkeys).

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Centroid

In mathematics and physics, the centroid or geometric center of a plane figure is the arithmetic mean position of all the points in the shape.

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Christmas

Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.

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Christmas and holiday season

The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.

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Christmas Eve

Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.

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Christmas traditions

Christmas traditions vary from country to country.

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Chromaticity

Chromaticity is an objective specification of the quality of a color regardless of its luminance.

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Chromosome

A chromosome (from Ancient Greek: χρωμόσωμα, chromosoma, chroma means colour, soma means body) is a DNA molecule with part or all of the genetic material (genome) of an organism.

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CIE 1931 color space

The CIE 1931 color spaces were the first defined quantitative links between distributions of wavelengths in the electromagnetic visible spectrum, and physiologically perceived colors in human color vision.

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Color

Color (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color categories, with names such as red, orange, yellow, green, blue, or purple.

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Color balance

In photography and image processing, color balance is the global adjustment of the intensities of the colors (typically red, green, and blue primary colors).

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Color blindness

Color blindness, also known as color vision deficiency, is the decreased ability to see color or differences in color.

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Color constancy

Color constancy is an example of subjective constancy and a feature of the human color perception system which ensures that the perceived color of objects remains relatively constant under varying illumination conditions.

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Color space

A color space is a specific organization of colors.

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Color theory

In the visual arts, color theory or colour theory is a body of practical guidance to color mixing and the visual effects of a specific color combination.

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Columbidae

Pigeons and doves constitute the animal family Columbidae and the order Columbiformes, which includes about 42 genera and 310 species.

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Complementary colors

Complementary colors are pairs of colors which, when combined, cancel each other out.

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Cone (topology)

In topology, especially algebraic topology, the cone CX of a topological space X is the quotient space: of the product of X with the unit interval I.

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Cone cell

Cone cells, or cones, are one of three types of photoreceptor cells in the retina of mammalian eyes (e.g. the human eye).

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David H. Hubel

David Hunter Hubel (February 27, 1926 – September 22, 2013) was a Canadian neurophysiologist noted for his studies of the structure and function of the visual cortex.

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Dichromacy

Dichromacy (di meaning "two" and chroma meaning "color") is the state of having two types of functioning color receptors, called cone cells, in the eyes.

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Dispersive prism

In optics, a dispersive prism is an optical prism, usually having the shape of a geometrical triangular prism, used as a spectroscopic component.

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Diurnality

Diurnality is a form of plant or animal behavior characterized by activity during the day, with a period of sleeping, or other inactivity, at night.

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Edwin H. Land

Edwin Herbert Land, ForMemRS, FRPS, Hon.MRI (May 7, 1909 – March 1, 1991) was an American scientist and inventor, best known as the co-founder of the Polaroid Corporation.

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Encyclopædia Britannica

The Encyclopædia Britannica (Latin for "British Encyclopaedia"), published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia.

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Euclidean space

In geometry, Euclidean space encompasses the two-dimensional Euclidean plane, the three-dimensional space of Euclidean geometry, and certain other spaces.

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Eutheria

Eutheria (from Greek εὐ-, eu- "good" or "right" and θηρίον, thēríon "beast" hence "true beasts") is one of two mammalian clades with extant members that diverged in the Early Cretaceous or perhaps the Late Jurassic.

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Evolution of color vision in primates

The evolution of color vision in primates is unique compared to most eutherian mammals.

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Ewald Hering

Karl Ewald Konstantin Hering (5 August 1834 – 26 January 1918) was a German physiologist who did much research into color vision, binocular perception and eye movements.

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Eye

Eyes are organs of the visual system.

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Fat-tailed dunnart

The fat-tailed dunnart (Sminthopsis crassicaudata) is a species of mouse-like marsupial of the Dasyuridae, the family that includes the little red kaluta, quolls, and the Tasmanian devil.

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Frequency

Frequency is the number of occurrences of a repeating event per unit of time.

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Gecko

Geckos are lizards belonging to the infraorder Gekkota, found in warm climates throughout the world.

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Gene duplication

Gene duplication (or chromosomal duplication or gene amplification) is a major mechanism through which new genetic material is generated during molecular evolution.

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Glob (visual system)

Globs are millimeter-sized color modules found beyond the visual area V2 in the brain's color processing ventral (also known as parvocellular) pathway.

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Green

Green is the color between blue and yellow on the visible spectrum.

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Herbivore

A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet.

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Hermann von Helmholtz

Hermann Ludwig Ferdinand von Helmholtz (August 31, 1821 – September 8, 1894) was a German physician and physicist who made significant contributions in several scientific fields.

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Hilbert space

The mathematical concept of a Hilbert space, named after David Hilbert, generalizes the notion of Euclidean space.

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Himba people

The Himba (singular: OmuHimba, plural: OvaHimba) are indigenous peoples with an estimated population of about 50,000 people living in northern Namibia, in the Kunene Region (formerly Kaokoland) and on the other side of the Kunene River in Angola.

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Hominidae

The Hominidae, whose members are known as great apes or hominids, are a taxonomic family of primates that includes eight extant species in four genera: Pongo, the Bornean, Sumatran and Tapanuli orangutan; Gorilla, the eastern and western gorilla; Pan, the common chimpanzee and the bonobo; and Homo, which includes modern humans and its extinct relatives (e.g., the Neanderthal), and ancestors, such as Homo erectus.

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Honey bee

A honey bee (or honeybee) is any member of the genus Apis, primarily distinguished by the production and storage of honey and the construction of perennial, colonial nests from wax.

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How the Mind Works

How the Mind Works is a 1997 book by Canadian-American cognitive scientist Steven Pinker, in which the author attempts to explain some of the human mind's poorly understood functions and quirks in evolutionary terms.

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Howler monkey

Howler monkeys (genus Alouatta monotypic in subfamily Alouattinae) are among the largest of the New World monkeys.

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Hue

Hue is one of the main properties (called color appearance parameters) of a color, defined technically (in the CIECAM02 model), as "the degree to which a stimulus can be described as similar to or different from stimuli that are described as red, green, blue, and yellow", (which in certain theories of color vision are called unique hues).

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Human

Humans (taxonomically Homo sapiens) are the only extant members of the subtribe Hominina.

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Hummingbird

Hummingbirds are birds from the Americas that constitute the family Trochilidae.

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Hymenoptera

Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants.

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ICC profile

In color management, an ICC profile is a set of data that characterizes a color input or output device, or a color space, according to standards promulgated by the International Color Consortium (ICC).

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Ideasthesia

Ideasthesia (alternative spelling ideaesthesia) is defined as a phenomenon in which activations of concepts (inducers) evoke perception-like experiences (concurrents).

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Insect

Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.

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Invertebrate

Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord.

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Inverted spectrum

The inverted spectrum is the hypothetical concept of two people sharing their color vocabulary and discriminations, although the colors one sees — one's qualia — are systematically different from the colors the other person sees.

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Isaac Newton

Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution.

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John Locke

John Locke (29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "Father of Liberalism".

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John Wiley & Sons

John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.

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Just-noticeable difference

In the branch of experimental psychology focused on sense, sensation, and perception, which is called psychophysics, a just-noticeable difference or JND is the amount something must be changed in order for a difference to be noticeable, detectable at least half the time (absolute threshold).

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Lateral geniculate nucleus

The lateral geniculate nucleus (LGN; also called the lateral geniculate body or lateral geniculate complex) is a relay center in the thalamus for the visual pathway.

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Light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.

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List of light sources

This is a list of sources of light, including both natural and artificial processes that emit light.

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Locus (mathematics)

In geometry, a locus (plural: loci) (Latin word for "place", "location") is a set of all points (commonly, a line, a line segment, a curve or a surface), whose location satisfies or is determined by one or more specified conditions.

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Mammal

Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.

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Mantis shrimp

Mantis shrimps, or stomatopods, are marine crustaceans of the order Stomatopoda.

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Marine mammal

Marine mammals are aquatic mammals that rely on the ocean and other marine ecosystems for their existence.

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Marsupial

Marsupials are any members of the mammalian infraclass Marsupialia.

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Mesopic vision

Mesopic vision is a combination of photopic vision and scotopic vision in low but not quite dark lighting situations.

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Molecular electronic transition

Molecular electronic transitions take place when electrons in a molecule are excited from one energy level to a higher energy level.The energy change associated with this transition provides information on the structure of a molecule and determines many molecular properties such as color.

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Monochromacy

Monochromacy (from Greek mono, meaning "one "and chromo, meaning "color") is the ability of organisms or machines to distinguish only one single frequency of the electromagnetic light spectrum.

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Nanometre

The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).

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Nectar

Nectar is a sugar-rich liquid produced by plants in glands called nectaries, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists, which in turn provide antiherbivore protection.

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New World monkey

New World monkeys are the five families of primates that are found in the tropical regions of Central and South America and Mexico: Callitrichidae, Cebidae, Aotidae, Pitheciidae, and Atelidae.

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New Year

New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.

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New Year's Day

New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.

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New Year's Eve

In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.

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Night monkey

The night monkeys, also known as the owl monkeys or douroucoulis, are the members of the genus Aotus of New World monkeys (monotypic in family Aotidae).

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Nocturnality

Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day.

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Occipital lobe

The occipital lobe is one of the four major lobes of the cerebral cortex in the brain of mammals.

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Oil droplet

Oil droplets are found in the eyes of some animals, being located in the photoreceptor cells.

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OPN1LW

OPN1LW is a gene on the X chromosome that encodes for long wave sensitive (LWS) opsin, or red cone photopigment.

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OPN1MW

Green-sensitive opsin is a protein that in humans is encoded by the OPN1MW gene.

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Opponent process

The color opponent process is a color theory that states that the human visual system interprets information about color by processing signals from cones and rods in an antagonistic manner.

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Opsin

Opsins are a group of proteins, made light-sensitive, via the chromophore retinal found in photoreceptor cells of the retina.

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Optic chiasm

The optic chiasm or optic chiasma (Greek χίασμα, "crossing", from the Greek χιάζω 'to mark with an X', after the Greek letter 'Χ', chi) is the part of the brain where the optic nerves partially cross.

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Optic nerve

The optic nerve, also known as cranial nerve II, is a paired nerve that transmits visual information from the retina to the brain.

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Optic tract

The optic tract (from the Latin tractus opticus) is a part of the visual system in the brain.

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Osmia bicornis

Osmia bicornis, synonym Osmia rufa, is a species of mason bee, and is known as the red mason bee due to its covering of dense gingery hair.

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Papilio

Papilio is a genus in the swallowtail butterfly family, Papilionidae, as well as the only representative of the tribe Papilionini.

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Pentachromacy

Pentachromacy describes the capability and capacity for capturing, transmitting, processing, and perceiving five independent channels of color information through the primary visual system.

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Philosophical Transactions of the Royal Society B

Philosophical Transactions of the Royal Society B: Biological Sciences is a biweekly peer-reviewed scientific journal published by the Royal Society.

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Photopic vision

Photopic vision is the vision of the eye under well-lit conditions (luminance level 10 to 108 cd/m2).

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Photopigment

Photopigments are unstable pigments that undergo a chemical change when they absorb light.

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Polymorphism (biology)

Polymorphism in biology and zoology is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species.

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Primary color

A set of primary colors is, most tangibly, a set of real colorants or colored lights that can be combined in varying amounts to produce a gamut of colors.

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Psychophysics

Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they produce.

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Purkinje effect

The Purkinje effect (sometimes called the Purkinje shift) is the tendency for the peak luminance sensitivity of the human eye to shift toward the blue end of the color spectrum at low illumination levels as part of dark adaptation.

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Purple

Purple is a color intermediate between blue and red.

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Red

Red is the color at the end of the visible spectrum of light, next to orange and opposite violet.

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Reflection (physics)

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.

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Reptile

Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.

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Retina

The retina is the innermost, light-sensitive "coat", or layer, of shell tissue of the eye of most vertebrates and some molluscs.

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Retinal ganglion cell

A retinal ganglion cell (RGC) is a type of neuron located near the inner surface (the ganglion cell layer) of the retina of the eye.

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RGB color model

The RGB color model is an additive color model in which red, green and blue light are added together in various ways to reproduce a broad array of colors.

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Rod cell

Rod cells are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells.

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Scotopic vision

Scotopic vision is the vision of the eye under low-light levels.

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Semir Zeki

Semir Zeki FMedSci FRS is a British neurobiologist who has specialised in studying the primate visual brain and more recently the neural correlates of affective states, such as the experience of love, desire and beauty that are generated by sensory inputs within the field of neuroesthetics.

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Simplex

In geometry, a simplex (plural: simplexes or simplices) is a generalization of the notion of a triangle or tetrahedron to arbitrary dimensions.

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Spectral color

A spectral color is a color that is evoked in a normal human by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light.

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Spectral sensitivity

Spectral sensitivity is the relative efficiency of detection, of light or other signal, as a function of the frequency or wavelength of the signal.

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Steven Pinker

Steven Arthur Pinker (born September 18, 1954) is a Canadian-American cognitive psychologist, linguist, and popular science author.

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Synapse

In the nervous system, a synapse is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron or to the target efferent cell.

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Synesthesia

Synesthesia is a perceptual phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway.

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Temporal lobe

The temporal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals.

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Tetrachromacy

Tetrachromacy is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cells in the eye.

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Thalamus

The thalamus (from Greek θάλαμος, "chamber") is the large mass of gray matter in the dorsal part of the diencephalon of the brain with several functions such as relaying of sensory signals, including motor signals, to the cerebral cortex, and the regulation of consciousness, sleep, and alertness.

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The dress

"The dress" is a photograph that became a viral Internet sensation on 26 February 2015, when viewers disagreed over whether the colours of the item of clothing depicted were black and blue or white and gold.

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Thomas Young (scientist)

Thomas Young FRS (13 June 1773 – 10 May 1829) was a British polymath and physician.

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Torsten Wiesel

Torsten Nils Wiesel (born 3 June 1924) is a Swedish neurophysiologist.

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Transmittance

Transmittance of the surface of a material is its effectiveness in transmitting radiant energy.

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Trichromacy

Trichromacy or trichromatism is the possessing of three independent channels for conveying color information, derived from the three different types of cone cells in the eye.

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Tropical fish

Tropical fish are generally those fish found in aquatic tropical environments around the world, including both freshwater and saltwater species.

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Two-streams hypothesis

The two-streams hypothesis is a widely accepted and influential model of the neural processing of vision as well as hearing.

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Ultraviolet

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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Ultraviolet–visible spectroscopy

Ultraviolet–visible spectroscopy or ultraviolet–visible spectrophotometry (UV–Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region.

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Vector space

A vector space (also called a linear space) is a collection of objects called vectors, which may be added together and multiplied ("scaled") by numbers, called scalars.

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Violet (color)

Violet is the color at the end of the visible spectrum of light between blue and the invisible ultraviolet.

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Visual cortex

The visual cortex of the brain is a part of the cerebral cortex that processes visual information.

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Visual perception

Visual perception is the ability to interpret the surrounding environment using light in the visible spectrum reflected by the objects in the environment.

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Wavelength

In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

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White point

A white point (often referred to as reference white or target white in technical documents) is a set of tristimulus values or chromaticity coordinates that serve to define the color "white" in image capture, encoding, or reproduction.

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X-inactivation

X-inactivation (also called lyonization) is a process by which one of the copies of the X chromosome present in female mammals is inactivated.

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Yellow

Yellow is the color between orange and green on the spectrum of visible light.

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Young–Helmholtz theory

The Young–Helmholtz theory (based on the work of Thomas Young and Hermann von Helmholtz in the 19th century) is a theory of trichromatic color vision – the manner in which the photoreceptor cells in the eyes of humans and other primates work to enable color vision.

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2018

2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.

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2019

2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.

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Redirects here:

Color Vision, Color legibility, Color perception, Colour perception, Colour vision, Perception of color, Sense of colour.

References

[1] https://en.wikipedia.org/wiki/Color_vision

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