0_Wizard
Purple is right in between blue and red on the spectrum.
Purple is a color intermediate between blue and red.
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Purple
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Purple
Purple is a color intermediate between blue and red. It is similar to violet, but unlike violet, which is a spectral color with its own wavelength on the visible spectrum of light, purple is a composite color made by combining red and blue. According to surveys in Europe and the U.S., purple is the color most often associated with royalty, magic, mystery and piety. When combined with pink, it is associated with eroticism, femininity and seduction. Purple was the color worn by Roman magistrates; it became the imperial color worn by the rulers of the Byzantine Empire and the Holy Roman Empire, and later by Roman Catholic bishops.
List of Endurance episodes
 The following episodes are the episode list for Endurance. Episode seven, fifteen, and sixteen are specials. The seventh episode recaps the events of the first six days of the competition. The fifteenth and the sixteenth episodes reunites the cast nearly one year since the series has started. In the series premiere, 20 strangers arrive on an island somewhere in the Pacific Ocean, where they meet the host, J.D. Roth, who explains the rules to them: every day, there will be a mission that will give one of seven teams a Pyramid Piece, an important item needed to win the game (the pieces are Courage, Heart, Knoweledge, Leadership, Commitment, Perseverance, Trust, Discipline, Strength, and Luck), and the following day features a Temple Mission, which gives the winning team a chance to send two other teams to the Temple of Fate, where one team is eliminated.
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. It lies between violet and green on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colors; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called Tyndall scattering explains blue eyes.
Violet (color)
Violet is the color at the end of the visible spectrum of light between blue and the invisible ultraviolet. Violet color has a dominant wavelength of approximately 380-450 nanometers. Light with a shorter wavelength than violet but longer than X-rays and gamma rays is called ultraviolet. In the color wheel historically used by painters, it is located between blue and purple. On the screens of computer monitors and television sets, a color which looks similar to violet is made, with the RGB color model, by mixing red and blue light, with the blue twice as bright as the red. This is not true violet, since it is composed of multiple longer wavelengths rather than a single wavelength shorter than that of blue light.
Shades of purple
There are numerous variations of the color purple, a sampling of which are shown below. In common English usage, "purple" is a range of hues of color occurring between red and blue. In color theory, "purple" colors are any colors on the line of purples on the CIE chromaticity diagram (or colors that can be derived from colors on the line of purples), i.e., any color between red and violet, not including either red or violet themselves. The first recorded use of "purple" as a color name in English was in 975 AD. "See also under Purple#In art and history the section "In prehistory and the ancient world: Tyrian purple" "  "Tyrian purple" is the contemporary English name of the color that in Latin is denominated ""purpura"".
Red
Red is the colour at the end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy. The red sky at sunset results from Rayleigh scattering, while the red color of the Grand Canyon and other geological features is caused by hematite or red ochre, both forms of iron oxide.
Color
Color (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color "categories", with names such as red, blue, yellow, green, orange, or purple. This perception of color derives from the stimulation of cone cells in the human eye by electromagnetic radiation in the spectrum of light. Color categories and physical specifications of color are associated with objects through the wavelength of the light that is reflected from them. This reflection is governed by the object's physical properties such as light absorption, emission spectra, etc.
1_Apprentice
What are the colors at either end of the spectrum?
0_Wizard
Color is the characteristic of visual perception.
Color (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color "categories", with names such as red, blue, yellow, green, orange, or purple.
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Color
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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. The resulting perception is also known as visual perception, eyesight, sight, or vision (adjectival form: "visual", "optical", or "ocular"). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science. The visual system in animals allows individuals to assimilate information from their surroundings.
James J. Gibson
James Jerome Gibson (; January 27, 1904 – December 11, 1979), was an American psychologist and one of the most important contributors to the field of visual perception. Gibson challenged the idea that the nervous system actively constructs conscious visual perception, and instead promoted ecological psychology, in which the mind directly perceives environmental stimuli without additional cognitive construction or processing. A "Review of General Psychology" survey, published in 2002, ranked him as the 88th most cited psychologist of the 20th century, tied with John Garcia, David Rumelhart, Louis Leon Thurstone, Margaret Floy Washburn, and Robert S. Woodworth.
Rudolf Arnheim
Rudolf Arnheim (July 15, 1904 – June 9, 2007) was a German-born author, art and film theorist, and perceptual psychologist. He learned Gestalt psychology from studying under Max Wertheimer and Wolfgang Köhler at the University of Berlin and applied it to art. His magnum opus was his book "Art and Visual Perception: A Psychology of the Creative Eye" (1954). Other major books by Arnheim have included "Visual Thinking" (1969), and "The Power of the Center: A Study of Composition in the Visual Arts" (1982). "Art and Visual Perception" was revised, enlarged and published as a new version in 1974, and it has been translated into fourteen languages.
Jocelyn Faubert
Prof. Jocelyn Faubert (born 1959) is a psychophysicist best known for his work in the fields of visual perception, vision of the elderly, and neuropsychology. Professor Faubert holds the NSERC-Essilor Industrial Research Chair in Visual Perception and Presbyopia. He is the director of the Laboratory of Psychophysics and Visual Perception at the University of Montreal. Professor Faubert has also been involved in the award-winning transfer of research and developments from the laboratory into the commercial domain. He is a co-founder and member of the Board of Directors of CogniSens Inc.  Dr. Faubert obtained his M.Sc.
Visual indexing theory
Visual Indexing Theory (also called FINST theory) is an account of early visual perception developed by Zenon Pylyshyn in the 1980s. It proposes a pre-attentive mechanism (a ‘FINST’) whose function is to individuate salient elements of a visual scene, and track their locations across space and time. Developed in response to what Pylyshyn viewed as limitations of prominent theories of visual perception at the time, visual indexing theory is supported by several lines of empirical evidence. 'FINST' abbreviates ‘FINgers of INSTantiation’. Pylyshyn describes visual indexing theory in terms of this analogy.
Visual system
The visual system is the part of the central nervous system which gives organisms the ability to process visual detail, as well as enabling the formation of several non-image photo response functions. It detects and interprets information from visible light to build a representation of the surrounding environment. The visual system carries out a number of complex tasks, including the reception of light and the formation of monocular representations; the buildup of a nuclear  binocular perception from a pair of two dimensional projections; the identification and categorization of visual objects; assessing distances to and between objects; and guiding body movements in relation to the objects seen.
Wishful thinking
Wishful thinking is the formation of beliefs and making decisions according to what might be pleasing to imagine instead of by appealing to evidence, rationality, or reality. It is a product of resolving conflicts between belief and desire. Studies have consistently shown that holding all else equal, subjects will predict positive outcomes to be more likely than negative outcomes (see unrealistic optimism). However, research suggests that under certain circumstances, such as when threat increases, a reverse phenomenon occurs. Some psychologists believe that positive thinking is able to positively influence behavior and so bring about better results.
1_Apprentice
True.     Human eyes are amazing things.
0_Wizard
The physiological components in vision are collectively referred to as the visual system.
The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science.
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Visual perception
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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. The resulting perception is also known as visual perception, eyesight, sight, or vision (adjectival form: "visual", "optical", or "ocular"). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science. The visual system in animals allows individuals to assimilate information from their surroundings.
Special senses
In medicine and anatomy, the special senses are the senses that have specialized organs devoted to them:  The distinction between special and general senses is used to classify nerve fibers running to and from the central nervous system – information from special senses is carried in special somatic afferents and special visceral afferents. In contrast, the other sense, touch, is a somatic sense which does not have a specialized organ but comes from all over the body, most noticeably the skin but also the internal organs (viscera). Touch includes mechanoreception (pressure, vibration and proprioception), pain (nociception) and heat (thermoception), and such information is carried in general somatic afferents and general visceral afferents.
Ambiguous image
Ambiguous images or reversible figures are optical illusion images which exploit graphical similarities and other properties of visual system interpretation between two or more distinct image forms. These are famous for inducing the phenomenon of multistable perception. Multistable perception is the occurrence of an image being able to provide multiple, although stable, perceptions. Classic examples of this are the rabbit-duck and the Rubin vase. Ambiguous images are important to the field of psychology because they are often research tools used in experiments. There is varying evidence on whether ambiguous images can be represented mentally, but a majority of research has theorized that they cannot be properly represented mentally.
Visual system
The visual system is the part of the central nervous system which gives organisms the ability to process visual detail, as well as enabling the formation of several non-image photo response functions. It detects and interprets information from visible light to build a representation of the surrounding environment. The visual system carries out a number of complex tasks, including the reception of light and the formation of monocular representations; the buildup of a nuclear  binocular perception from a pair of two dimensional projections; the identification and categorization of visual objects; assessing distances to and between objects; and guiding body movements in relation to the objects seen.
Optics and vision
Visual perception is the ability to interpret information and surroundings from visible light reaching the eye. The resulting perception is also known as eyesight, sight or vision. The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in psychology, cognitive science, neuroscience and molecular biology. The visual system in humans allows individuals to assimilate information from the environment. The act of seeing starts when the lens of the eye focuses an image of its surroundings onto a light-sensitive membrane in the back of the eye, called the retina.
Visual acuity
Visual acuity (VA) commonly refers to the clarity of vision. Visual acuity is dependent on optical and neural factors, i.e., (i) the sharpness of the retinal focus within the eye, (ii) the health and functioning of the retina, and (iii) the sensitivity of the interpretative faculty of the brain. A common cause of low visual acuity is refractive error (ametropia), or errors in how the light is refracted in the eyeball. Causes of refractive errors include aberrations in the shape of the eyeball, the shape of the cornea, and reduced flexibility of the lens. Too high or too low refractive error (in relation to the length of the eyeball) is the cause of nearsightedness (myopia) or farsightedness (hyperopia) (normal refractive status is referred to as emmetropia).
Emotion
Emotion is any conscious experience characterized by intense mental activity and a certain degree of pleasure or displeasure. Scientific discourse has drifted to other meanings and there is no consensus on a definition. Emotion is often intertwined with mood, temperament, personality, disposition, and motivation. In some theories, cognition is an important aspect of emotion. Those acting primarily on the emotions they are feeling may seem as if they are not thinking, but mental processes are still essential, particularly in the interpretation of events. For example, the realization of our believing that we are in a dangerous situation and the subsequent arousal of our body's nervous system (rapid heartbeat and breathing, sweating, muscle tension) is integral to the experience of our feeling afraid.