Perception

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Perception
A Wisdom Archive on Perception

Perception A selection of articles related to Perception

We recommend this article: Perception - 1, and also this: Perception - 2.

perception, Perception, Perception - History of the study of perception, Perception - Perception and reality, Pareidolia, Apophenia, Spirituality

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ARTICLES RELATED TO Perception

Perception: Encyclopedia II - Visual perception - Theoretical perspectives in the study of visual perception

Visual perception - Unconscious inference. Hermann von Helmholtz is often credited with the founding of the scientific study of visual perception. Helmholtz held vision to be a form of unconscious inference: vision is a matter of deriving a probable interpretation for incomplete data. The general goal of vision is to identify, as accurately as possible, the features of our environment: roughly, what objects are present where. Other features are irrelevant to this task : illumination patterns, viewing ...

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Visual perception, Visual perception - The visual system, Visual perception - Sources of information, Visual perception - Individual and group differences in visual perception, Visual perception - Theoretical perspectives in the study of visual perception, Visual perception - Unconscious inference, Visual perception - Gestalt, Visual perception - Ecological psychology, Visual perception - Types of visual perception, Visual perception - Disorders/Dysfuntions

Read more here: » Visual perception: Encyclopedia II - Visual perception - Theoretical perspectives in the study of visual perception

Perception: Encyclopedia II - Depth perception - Depth clues

Depth perception combines several types of depth clues grouped into two categories: monocular clues (clues available from the input of just one eye) and binocular clues (clues that require input from both eyes). Depth perception - Monocular clues. Motion parallax - The apparent relative motion of several stationary objects against a background when the observer moves gives hints about their relative distance. This effect can be seen clearly when driving in a car, nearby things pass quickly, while far ...

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Depth perception, Depth perception - Depth clues, Depth perception - Monocular clues, Depth perception - Binocular clues, Depth perception - Integrating depth information, Depth perception - Depth perception in art, Depth perception - Disorders affecting depth perception, Depth perception - Notes

Read more here: » Depth perception: Encyclopedia II - Depth perception - Depth clues

Perception: Encyclopedia II - Extra-sensory perception - Types of ESP

Specific types of extra-sensory perception include: Perception of events in other places (clairvoyance, clairaudience, clairsentience) and in other times (precognition, retrocognition, second sight) Perception of aspects of others not perceivable by most people (aura reading) The ability to sense communications from, and communicate with, people far away (telepathy), beyond the grave (medium-hood and séancing, spirit wa ...

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Extra-sensory perception, Extra-sensory perception - Types of ESP, Extra-sensory perception - History of ESP, Extra-sensory perception - Extra-sensory perception and hypnosis, Extra-sensory perception - Extra-sensory perception and technology, Extra-sensory perception - Ongoing debates about the existence of ESP, Extra-sensory perception - Difficulties testing ESP, Extra-sensory perception - The Randi Prize, Extra-sensory perception - The Zetetic challenge, Extra-sensory perception - General criticism, Extra-sensory perception - Independent research organizations

Read more here: » Extra-sensory perception: Encyclopedia II - Extra-sensory perception - Types of ESP

Perception: Encyclopedia II - Extra-sensory perception - History of ESP

The notion of extra-sensory perception is a very old one, and in many ancient cultures it was taken for granted that certain people had such powers of perception, be it second sight, or the power to communicate with deities, ancestors, or spirits. However, in recent centuries this idea has been widely classified as superstition and denounced as fictitious, or at best unprovable and unscientific. in ancient culture: the Delphic Oracle, shamans, soothsayers, ... Extra-sensory ...

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Extra-sensory perception, Extra-sensory perception - Types of ESP, Extra-sensory perception - History of ESP, Extra-sensory perception - Extra-sensory perception and hypnosis, Extra-sensory perception - Extra-sensory perception and technology, Extra-sensory perception - Ongoing debates about the existence of ESP, Extra-sensory perception - Difficulties testing ESP, Extra-sensory perception - The Randi Prize, Extra-sensory perception - The Zetetic challenge, Extra-sensory perception - General criticism, Extra-sensory perception - Independent research organizations

Read more here: » Extra-sensory perception: Encyclopedia II - Extra-sensory perception - History of ESP

Perception: Encyclopedia II - Extra-sensory perception - Ongoing debates about the existence of ESP

Proponents of the existence of ESP point to numerous scientific studies that appear to offer evidence of the phenomenon's existence: the work of J. B. Rhine, a botanist at Duke University in the 1930s, and of Russell Targ and Harold E. Puthoff, physicists at SRI International in the 1970s, are often cited in arguments that ESP exists. Those who believe ESP does not exist point to methodological flaws in such studies[1], and point to numerous other ESP studies which have failed to find any evidence of the phenomenon. Many modern scient ...

See also:

Extra-sensory perception, Extra-sensory perception - Types of ESP, Extra-sensory perception - History of ESP, Extra-sensory perception - Extra-sensory perception and hypnosis, Extra-sensory perception - Extra-sensory perception and technology, Extra-sensory perception - Ongoing debates about the existence of ESP, Extra-sensory perception - Difficulties testing ESP, Extra-sensory perception - The Randi Prize, Extra-sensory perception - The Zetetic challenge, Extra-sensory perception - General criticism, Extra-sensory perception - Independent research organizations

Read more here: » Extra-sensory perception: Encyclopedia II - Extra-sensory perception - Ongoing debates about the existence of ESP

Perception: Encyclopedia II - Hallucinogen persisting perception disorder - Overview

HPPD is different from a drug-induced psychosis in that a person with HPPD is fully aware that the distortions are not real (i.e. do not reflect any external reality that can be experienced by other people). Still, the distortions experienced by a person with HPPD can be powerful and may provoke anxiety. Some patients with HPPD are troubled with feelings of guilt and regret. Cases of HPPD can be divided in two categories: The cases in which the perceptual distortions are present all the time (sometimes even when the person in question ...

See also:

Hallucinogen persisting perception disorder, Hallucinogen persisting perception disorder - Overview, Hallucinogen persisting perception disorder - Symptoms, Hallucinogen persisting perception disorder - Treatment

Read more here: » Hallucinogen persisting perception disorder: Encyclopedia II - Hallucinogen persisting perception disorder - Overview

Perception: Encyclopedia II - Hallucinogen persisting perception disorder - Symptoms

HPPD includes many types of distortions. Under most definitions, it is a requirement that the distortions has some resemblence to the distortions experienced by the person while under the influence of the hallucinogen in question. It should be noted that some visual disturbances are normal and are also experienced by many people who never took drugs. Such visual disturbances include floaters (black/dark objects that appear to be floating on the eyes, particularly visible when looking at the bright sky or on a white wall). Likewise, br ...

See also:

Hallucinogen persisting perception disorder, Hallucinogen persisting perception disorder - Overview, Hallucinogen persisting perception disorder - Symptoms, Hallucinogen persisting perception disorder - Treatment

Read more here: » Hallucinogen persisting perception disorder: Encyclopedia II - Hallucinogen persisting perception disorder - Symptoms

Perception: Encyclopedia II - Hallucinogen persisting perception disorder - Symptoms

HPPD includes many types of distortions. Under most definitions, it is a requirement that the distortions has some resemblance to the distortions experienced by the person while under the influence of the hallucinogen in question. It should be noted that some visual disturbances are normal and are also experienced by many people who never took drugs. Such visual disturbances include floaters (black/dark objects that appear to be floating on the eyes, particularly visible when looking at the bright sky or on a white wall). Likewise, br ...

See also:

Hallucinogen persisting perception disorder, Hallucinogen persisting perception disorder - Overview, Hallucinogen persisting perception disorder - Symptoms, Hallucinogen persisting perception disorder - Treatment

Read more here: » Hallucinogen persisting perception disorder: Encyclopedia II - Hallucinogen persisting perception disorder - Symptoms

Perception: Encyclopedia II - Saltasaurus - Changing perceptions

In the Cretaceous period, sauropod dinosaurs in North America were losing the survival game to duck-billed dinosaurs, such as Edmontosaurus. However, like modern Australia, South America was an island continent and life evolved rather differently there. Specifically, the duck-billed dinosaurs never gained a foothold and so sauropods, specifically the titanosaurids, continued on their own path of ...

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Saltasaurus, Saltasaurus - Changing perceptions, Saltasaurus - Fact summary, Saltasaurus - Eggs?

Read more here: » Saltasaurus: Encyclopedia II - Saltasaurus - Changing perceptions

Perception: Encyclopedia II - Contrast - Visual perception

In visual perception, contrast is the difference in visual properties that makes an object (or its representation in an image) distinguishable from other objects and the background. world, contrast is determined by the difference in the color and brightness of the light reflected or emitted by an object and other objects within the same field of view. In imaging, contrast depends additionally on the image source ...

See also:

Contrast, Contrast - Visual perception, Contrast - Telecommunication, Contrast - Music, Contrast - Linguistics and semantics, Contrast - Medicine

Read more here: » Contrast: Encyclopedia II - Contrast - Visual perception

Perception: Encyclopedia II - Kitten - Perceptions of cuteness

Feline kittens are stereotypically (and typically) very cute to human perception. Entire websites such as Kittenwar.com are devoted to the cute look and behavior of kittens. There are good evolutionary reasons to expect humans to find juvenile humans, and perhaps juvenile animals in general, cute. This is related to the novelty of the exaggerated size of the head that is common to juvenile mammals and many other species. Why humans find cats in general cuter than most other species remains a topic of speculation. It may be the retenti ...

See also:

Kitten, Kitten - Birth and development, Kitten - Caring for domestic kittens, Kitten - Perceptions of cuteness, Kitten - External link

Read more here: » Kitten: Encyclopedia II - Kitten - Perceptions of cuteness

Perception: Encyclopedia II - Hawaiian Pidgin - Perceptions

Today, most people raised in Hawai‘i can speak and understand Pidgin to some extent. At the same time, many people who know Pidgin can code-switch between standard American English and Pidgin depending on the situation. Knowledge of Pidgin is considered by many to be an important part of being considered "local," regardless of racial and socioeconomic background. For example, the Hawaii-born CEO of one of the largest banks in the state said of the Mainland-born CEO of a competing bank, "Anytime he wants to d ...

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Hawaiian Pidgin, Hawaiian Pidgin - History, Hawaiian Pidgin - Perceptions, Hawaiian Pidgin - Pronunciation, Hawaiian Pidgin - Grammatical Features, Hawaiian Pidgin - Literature and performing arts, Hawaiian Pidgin - Miscellaneous

Read more here: » Hawaiian Pidgin: Encyclopedia II - Hawaiian Pidgin - Perceptions

Perception: Encyclopedia II - Color vision - Color perception

Perception of color is achieved in mammals through color receptors containing pigments with different spectral sensitivities. In most Old World primates there are three types of color receptors (known as cone cells). This confers trichromatic color vision, so these primates, like humans, are known as trichromats. In the human eye, the cones are maximally receptive to short, medium, and long wavelengths of light and are therefore usually called S-, M-, and L-cones. L-cones are often referred to as the red receptor, but while the perception of red depends on this receptor, microspectrophotometry has shown that its peak sen ...

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Color vision, Color vision - Color perception, Color vision - Cone cells in the human eye, Color vision - Chromatic adaptation

Read more here: » Color vision: Encyclopedia II - Color vision - Color perception

Perception: Encyclopedia II - Pundit politics - Current use and perception

In recent years, particularly with the increased popularity of TV and Radio pundits such as Bill O'Reilly and Rush Limbaugh, the term has begun to take on something of a negative connotation to many. Pundits are increasingly seen not as experts, but as ideological partisans who tend to do more ranting than measured commentary. This perception has caused the term to take on derogatory overtones, as some people conflate pundit w ...

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Pundit politics, Pundit politics - Origins, Pundit politics - Past English use, Pundit politics - Current use and perception, Pundit politics - Links

Read more here: » Pundit politics: Encyclopedia II - Pundit politics - Current use and perception

Perception: Encyclopedia II - Eroge - Western perceptions

Eroge are seen among many Internet-using Westerners as focusing on perversion and kinks (see Pornography in Japan). But unlike the majority of American adult games, eroge often portray characters with individual personalities, quirks, and daily concerns. Many games focus on the immersion of a specific setting or environment, and the social relationships between characters. As the amount of interactive game play is limited for most of these translated games, they are sometimes considered better as visual novels (and sometimes even interactive) for the PC rather than c ...

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Eroge, Eroge - History of eroge, Eroge - Types of eroge, Eroge - Western perceptions, Eroge - Well-known eroge

Read more here: » Eroge: Encyclopedia II - Eroge - Western perceptions

Perception: Encyclopedia II - Finlandization - Finnish perception

In Finland the use (by others) of the term "Finlandization" was perceived as a brickbat stemming from an inability to understand the practicalities of how a small nation might hope to make a deal with a culturally and ideologically alien superpower without losing its sovereignty. Finland cut such a deal with Stalin's government in the late 1940s, and it was largely respected by both parties — and to the gain of both parties — until the fall of the Soviet Union in 1991. While the Finnish political and intellectual elite mostly understood ...

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Finlandization, Finlandization - Origin and international usage, Finlandization - Finnish perception, Finlandization - Historical background, Finlandization - The Paasikivi doctrine, Finlandization - Self-censorship and excessive Soviet adaptation, Finlandization - Criticism, Finlandization - Trivia

Read more here: » Finlandization: Encyclopedia II - Finlandization - Finnish perception

Perception: Encyclopedia II - Hooters - Public perception

Hooters - Controversy. The chain is controversial on two counts. The uniform is considered by some to be objectification of women. The general environment of the restaurant is seen by many feminists as sexist and demeaning of women. The restaurant hires only women as servers, and refers to them as "Hooters Girls." Several discrimination lawsuits brought against the chain have been settled out of court or dropped by the Equal Employment Opportunity Commission (EEOC). Men do find employment at Hooters in jobs other than on the waitstaff. The men are always available to deal wi ...

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Hooters, Hooters - Hooters Girl, Hooters - Employee handbook requirements, Hooters - Public perception, Hooters - Controversy, Hooters - Public relations, Hooters - Pop culture trivia

Read more here: » Hooters: Encyclopedia II - Hooters - Public perception

Perception: Encyclopedia II - Denis Thatcher - Public Life and Perceptions

The public perception of his character was formed chiefly from a series of spoof letters published in the satirical magazine Private Eye in the 1980s. The "Dear Bill" column written by Richard Ingrams and John Wells took the form of a letter purported to be from Denis to his real life friend and golfing partner Bill Deedes (former editor of The Daily Telegraph), detailing life at Number 10. The letters portrayed Denis Thatcher as a reactionary interested only in golf and gin. John Wells used the character portrayed in the lette ...

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Denis Thatcher, Denis Thatcher - Early Life / Work, Denis Thatcher - Public Life and Perceptions, Denis Thatcher - Legacy, Denis Thatcher - Publications

Read more here: » Denis Thatcher: Encyclopedia II - Denis Thatcher - Public Life and Perceptions

Perception: Encyclopedia II - Euler's identity - Perceptions of the identity

Benjamin Peirce, the noted nineteenth century mathematician and Harvard professor, after proving the identity in a lecture, said, "Gentlemen, that is surely true, it is absolutely paradoxical; we cannot understand it, and we don't know what it means. But we have proved it, and therefore we know it must be the truth."1 Richard Feynman called Euler's formula (from which the identity is derived) "the most remarkable formula in mathematics".2 Feynman, as we ...

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Euler's identity, Euler's identity - Derivation, Euler's identity - Perceptions of the identity, Euler's identity - Notes

Read more here: » Euler's identity: Encyclopedia II - Euler's identity - Perceptions of the identity

Perception: Encyclopedia II - Euler's identity - Perceptions of the identity

Many people find this identity remarkable for its mathematical beauty. The identity links what are arguably the most fundamental mathematical constants: The number 0. The number 1. The number π is a fundamental constant of trigonometry, Euclidean geometry, and mathematical analysis. The number e is fundamental in the study of logarithms and occurs widely in mathematical analysis. The imaginary unit i (where i2 = −1) is a unit in the complex numbers. (Introducing this unit yields all non-constant polynomial equations soluble in the field ...

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Euler's identity, Euler's identity - Derivation, Euler's identity - Perceptions of the identity, Euler's identity - Notes

Read more here: » Euler's identity: Encyclopedia II - Euler's identity - Perceptions of the identity

Perception: Encyclopedia II - LaToya Jackson - Public perception/scandals

Due to what are often considered a number of unwise professional and personal choices, the public perception of Jackson is generally not favorable. Having never scored what could be considered a major commercial music hit, she is often mocked by comedians or the press as being the least talented of the Jackson siblings. She is more commonly associated with various scandals than with any part of her body of work. For her part Jackson has attributed all of these negative connotations to actions ta ...

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LaToya Jackson, LaToya Jackson - Biography, LaToya Jackson - Public perception/scandals, LaToya Jackson - 2001 and after, LaToya Jackson - Discography, LaToya Jackson - Albums, LaToya Jackson - Singles

Read more here: » LaToya Jackson: Encyclopedia II - LaToya Jackson - Public perception/scandals

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