Visual Agnosia
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Visual Agnosia
Visual agnosia is an impairment in recognition of visually presented objects. It is not due to a deficit in vision (acuity, visual field, and scanning), language, memory, or intellect. While cortical blindness results from lesions to primary visual cortex, visual agnosia is often due to damage to more anterior cortex such as the posterior occipital and/or temporal lobe(s) in the brain. /sup> There are two types of visual agnosia: apperceptive agnosia and associative agnosia. Recognition of visual objects occurs at two primary levels. At an apperceptive level, the features of the visual information from the retina are put together to form a perceptual representation of an object. At an associative level, the meaning of an object is attached to the perceptual representation and the object is identified. If a person is unable to recognize objects because they cannot perceive correct forms of the objects, although their knowledge of the objects is intact (i.e. they do not have anomia), ...
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Cortical Blindness
Cortical blindness is the total or partial loss of vision in a normal-appearing eye caused by damage to the brain's occipital cortex. Cortical blindness can be acquired or congenital, and may also be transient in certain instances. Acquired cortical blindness is most often caused by loss of blood flow to the occipital cortex from either unilateral or bilateral posterior cerebral artery blockage (ischemic stroke) and by cardiac surgery. In most cases, the complete loss of vision is not permanent and the patient may recover some of their vision (cortical visual impairment). Congenital cortical blindness is most often caused by perinatal ischemic stroke, encephalitis, and meningitis. Rarely, a patient with acquired cortical blindness may have little or no insight that they have lost vision, a phenomenon known as Anton–Babinski syndrome. Cortical blindness and cortical visual impairment (CVI), which refers to the partial loss of vision caused by cortical damage, are both classified a ...
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House (TV Series)
''House'' (also called ''House, M.D.'') is an American medical drama television series that originally ran on the Fox network for eight seasons, from November 16, 2004, to May 21, 2012. The series' main character is Dr. Gregory House (Hugh Laurie), an unconventional, misanthropic medical genius who, despite his dependence on pain medication, leads a team of diagnosticians at the fictional Princeton–Plainsboro Teaching Hospital (PPTH) in New Jersey. The series' premise originated with Paul Attanasio, while David Shore, who is credited as creator, was primarily responsible for the conception of the title character. The series' executive producers included Shore, Attanasio, Attanasio's business partner Katie Jacobs, and film director Bryan Singer. It was filmed largely in a neighborhood and business district in Los Angeles County's Westside called Century City. The show received high critical acclaim, and was consistently one of the highest rated series in the United States. ...
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Gestaltzerfall
Gestaltzerfall (German for "shape decomposition" or Gestalt decomposition) is a type of visual agnosia and is a psychological phenomenon where delays in recognition are observed when a complex shape is stared at for a while as the shape seems to decompose into its constituting parts. In plain terms, if a subject reads or hears the same term over and over, that term ceases to have any meaning. With regards to kanji, a study has shown that delays are most significant when the characters are of the same size. When characters to recognize are of different sizes, delays are observed only when they are of different patterns. Gestaltzerfall has also been described as a phenomenon where the output signals from the brain go beyond their expected range. Origin The phenomenon was first described and named by C. Faust in 1947 as a symptom of the bilateral region of the parieto-occipital sulcus after a through and through bullet wound of this region. Afterwards, when the subject stared at a ...
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Color Agnosia
Cerebral achromatopsia is a type of color-blindness caused by damage to the cerebral cortex of the brain, rather than abnormalities in the cells of the eye's retina. It is often confused with congenital achromatopsia but underlying physiological deficits of the disorders are completely distinct. A similar, but distinct, deficit called color agnosia exists in which a person has intact color perception (as measured by a matching task) but has deficits in color recognition, such as knowing which color they are looking at. Signs and symptoms Patients with cerebral achromatopsia deny having any experience of color when asked and fail standard clinical assessments like the Farnsworth-Munsell 100-hue test (a test of color ordering with no naming requirements). Patients may often not notice their loss of color vision and merely describe the world they see as being "drab". Most describe seeing the world in "shades of gray". This observation notes a key difference between cerebral and cong ...
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Blindness
Visual impairment, also known as vision impairment, is a medical definition primarily measured based on an individual's better eye visual acuity; in the absence of treatment such as correctable eyewear, assistive devices, and medical treatment– visual impairment may cause the individual difficulties with normal daily tasks including reading and walking. Low vision is a functional definition of visual impairment that is chronic, uncorrectable with treatment or correctable lenses, and impacts daily living. As such low vision can be used as a disability metric and varies based on an individual's experience, environmental demands, accommodations, and access to services. The American Academy of Ophthalmology defines visual impairment as the best-corrected visual acuity of less than 20/40 in the better eye, and the World Health Organization defines it as a presenting acuity of less than 6/12 in the better eye. The term blindness is used for complete or nearly complete vision loss. In ...
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Agnosia
Agnosia is the inability to process sensory information. Often there is a loss of ability to recognize objects, persons, sounds, shapes, or smells while the specific sense is not defective nor is there any significant memory loss. It is usually associated with brain injury or neurological illness, particularly after damage to the occipitotemporal border, which is part of the ventral stream. Agnosia only affects a single modality, such as vision or hearing. More recently, a top-down interruption is considered to cause the disturbance of handling perceptual information. Types Visual agnosia Visual agnosia is a broad category that refers to a deficiency in the ability to recognize visual objects. Visual agnosia can be further subdivided into two different subtypes: apperceptive visual agnosia and associative visual agnosia. Individuals with apperceptive visual agnosia display the ability to see contours and outlines when shown an object, but they experience difficulty if ask ...
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Odd Taxi
(stylized as ODD''TAXI'') is a Japanese anime television series. Set in a world of anthropomorphic animals, it tells the story of walrus taxi driver Odokawa, who converses with his customers and learns about various mysteries and oddities occurring in Tokyo, including a schoolgirl's strange disappearance that leads to him being followed by both the police and the '' yakuza''. The series, produced by OLM and P.I.C.S, was broadcast on TV Tokyo and AT-X from April to June 2021, and was licensed by Crunchyroll in North America and Mighty Media in Southeast Asia. Prior to its release, a manga from Shogakukan (via Big Comics) began publication in January 2021, and was serialized in its ''Superior Dalpana'' magazine till July 2022. An anime film, '' Odd Taxi: In the Woods'', was released in Japan in April 2022. Plot Set in a world of anthropomorphic animals, ''Odd Taxi'' tells the story of Odokawa, a 41-year old walrus taxi driver whose parents abandoned him in elementa ...
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Ted Chiang
Ted Chiang (born 1967) is an American science fiction writer. His work has won four Nebula awards, four Hugo awards, the John W. Campbell Award for Best New Writer, and six Locus awards. His short story "Story of Your Life" was the basis of the film ''Arrival'' (2016). He was an artist in residence at the University of Notre Dame in 2020–2021. Early life, family and education Ted Chiang was born in 1967 in Port Jefferson, New York. His Chinese name is Chiang Feng-nan (). Both of his parents were born in Mainland China and immigrated to Taiwan with their families during the Chinese Communist Revolution before immigrating to the United States. His father, Fu-pen Chiang, is a distinguished professor of mechanical engineering at Stony Brook University. Chiang graduated from Brown University with a computer science degree. Career Chiang began submitting stories to magazines in high school. After attending the Clarion Workshop in 1989 he sold his first story, "The Tower of Babylo ...
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A Documentary
A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, " a", and its variant " an", are indefinite articles. History The earliest certain ancestor of "A" is aleph (also written 'aleph), the first letter of the Phoenician alphabet, which consisted entirely of consonants (for that reason, it is also called an abjad to distinguish ...
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Hypnosis
Hypnosis is a human condition involving focused attention (the selective attention/selective inattention hypothesis, SASI), reduced peripheral awareness, and an enhanced capacity to respond to suggestion.In 2015, the American Psychological Association Division 30 defined hypnosis as a "state of consciousness involving focused attention and reduced peripheral awareness characterized by an enhanced capacity for response to suggestion". For critical commentary on this definition, see: There are competing theories explaining hypnosis and related phenomena. ''Altered state'' theories see hypnosis as an altered state of mind or trance, marked by a level of awareness different from the ordinary Consciousness, state of consciousness. In contrast, ''non-state'' theories see hypnosis as, variously, a type of placebo effect,Kirsch, I., "Clinical Hypnosis as a Nondeceptive Placebo", pp. 211–25 in Kirsch, I., Capafons, A., Cardeña-Buelna, E., Amigó, S. (eds.), ''Clinical Hypnosis ...
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The X-Files
''The X-Files'' is an American science fiction on television, science fiction drama (film and television), drama television series created by Chris Carter (screenwriter), Chris Carter. The series revolves around Federal Bureau of Investigation (FBI) Special Agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson), who investigate X-files unit, X-Files: marginalized, unsolved cases involving paranormal phenomena. The original television series aired from September 1993 to May 2002, on Fox Broadcasting Company, Fox. The program spanned List of The X-Files episodes, nine seasons, with 202 episodes. A short The X-Files (season 10), tenth season consisting of six episodes ran from January to February 2016. Following the ratings success of this revival (television), revival, ''The X-Files'' returned for an The X-Files (season 11), eleventh season of ten episodes, which ran from January to March 2018. In addition to the television series, two feature films have been release ...
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At First Sight (1999 Film)
''At First Sight'' is a 1999 American romantic drama film directed by Irwin Winkler and starring Val Kilmer and Mira Sorvino. It is based on the essay "To See and Not See"14,000 words = short work, so the title should be in quotes, not italicized. --> in neurologist Oliver Sacks' 1995 book '' An Anthropologist on Mars'' and inspired by the true life story of Shirl Jennings. The film was written by Steve Levitt. Plot Amy Benic (Mira Sorvino) takes a vacation at a spa outside New York City. Virgil Adamson (Val Kilmer) is a masseur at the spa and gives Amy a massage. Amy inexplicably cries and Virgil comforts her. While complimenting Virgil on the massage, Amy realizes that Virgil is blind. Virgil asks her out, and the two eventually begin a relationship. Virgil lives alone, though his over-protective sister Jennie (Kelly McGillis) lives next door and takes care of him. Virgil reveals that he went blind when he was three and that the last thing he saw was something fluffy. While res ...
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