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Pigeon Intelligence
Pigeons have featured in numerous experiments in comparative psychology, including experiments concerned with animal cognition, and as a result there is considerable knowledge of pigeon intelligence. Available data show, for example, that: *Pigeons have the capacity to share attention between different dimensions of a stimulus, but (like humans and other animals) their performance with multiple dimensions is worse than with a single stimulus dimension. *Pigeons can be taught relatively complex actions and response sequences, and can learn to make responses in different sequences. *Pigeons readily learn to respond in the presence of one simple stimulus and withhold responding in the presence of a different stimulus, or to make different responses in the presence of different stimuli. *Pigeons can discriminate between other individual pigeons, and can use the behaviour of another individual as a cue to tell them what response to make. *Pigeons readily learn to make discriminative res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domestic Pigeon
The domestic pigeon (''Columba livia domestica'' or ''Columba livia'' ''forma'' ''domestica'') is a pigeon subspecies that was derived from the rock dove (also called the rock pigeon). The rock pigeon is the world's oldest domesticated bird. Mesopotamian cuneiform tablets mention the domestication of pigeons more than 5,000 years ago, as do Egyptian hieroglyphics. Research suggests that domestication of pigeons occurred as early as 10,000 years ago. Pigeons have made contributions of considerable importance to humanity, especially in times of war. In war the homing ability of pigeons has been put to use by making them messengers. So-called war pigeons have carried many vital messages and some have been decorated for their services. Medals such as the Croix de Guerre, awarded to Cher Ami, and the Dickin Medal awarded to the pigeons G.I. Joe and Paddy, amongst 32 others, have been awarded to pigeons for their services in saving human lives. Despite this, city pigeons today are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ig Nobel Prize
The Ig Nobel Prize ( ) is a satiric prize awarded annually since 1991 to celebrate ten unusual or trivial achievements in scientific research. Its aim is to "honor achievements that first make people laugh, and then make them think." The name of the award is a pun on the Nobel Prize, which it parodies, and on the word '' ignoble'' ("not noble"). Organized by the scientific humor magazine, '' Annals of Improbable Research'' (AIR), the Ig Nobel Prizes are presented by Nobel laureates in a ceremony at the Sanders Theater, Harvard University, and are followed by the winners' public lectures at the Massachusetts Institute of Technology. History The Ig Nobels were created in 1991 by Marc Abrahams, editor and co-founder of the '' Annals of Improbable Research'', a former editor-in-chief of the ''Journal of Irreproducible Results'' who has been master of ceremonies at all awards ceremonies. Awards were presented at that time for discoveries "that cannot, or should not, be reproduced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Herrnstein
Richard Julius Herrnstein (May 20, 1930 – September 13, 1994) was an American psychologist at Harvard University. He was an active researcher in animal learning in the B. F. Skinner, Skinnerian tradition. Herrnstein was the Edgar Pierce Professor of Psychology until his death, and previously chaired the Harvard Department of Psychology for five years. With political scientist Charles Murray (political scientist), Charles Murray, he co-wrote ''The Bell Curve'', a controversial 1994 book on human intelligence. He was one of the founders of the Society for Quantitative Analysis of Behavior. Early life and education Richard Herrnstein was born on 20 May 1930, in New York City, to a family of History of the Jews in Hungary, Hungarian Jewish immigrants; the son of Flora Irene (née Friedman) and Rezso Herrnstein, a housepainter. He was educated at the High School of Music & Art and the City College of New York, receiving a B.A. from the latter in 1952. In 1955, Herrnstein obtained his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Pigeon
During World War II, Project Pigeon (later Project Orcon, for "organic control") was American behaviorist B. F. Skinner's attempt to develop a pigeon-controlled guided bomb. Overview The testbed was the same National Bureau of Standards-developed, unpowered airframe that was later used for the US Navy's radar-guided "Bat" glide bomb, which was basically a small glider, with wings and tail surfaces, an explosive warhead section in the center, and a "guidance section" in the nose cone. The intent was to train pigeons to act as "pilots" for the device, using their cognitive abilities to recognize the target. The guidance system consisted of three lenses mounted in the nose of the vehicle, which projected an image of the target on a screen mounted in a small compartment inside the nose cone. This screen was mounted on pivots and fitted with sensors that measured any angular movement. One to three pigeons, trained by operant conditioning to recognize the target, were stationed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pigeon Photography
Pigeon photography is an aerial photography technique invented in 1907 by the German apothecary Julius Neubronner, who also used pigeons to deliver medications. A homing pigeon was fitted with an aluminium breast harness to which a lightweight time-delayed miniature camera could be attached. Neubronner's German patent application was initially rejected, but was granted in December 1908 after he produced authenticated photographs taken by his pigeons. He publicized the technique at the 1909 Dresden International Photographic Exhibition, and sold some images as postcards at the Frankfurt International Aviation Exhibition and at the 1910 and 1911 Paris Air Shows. Initially, the military potential of pigeon photography for aerial reconnaissance appeared interesting. Battlefield tests in World War I provided encouraging results, but the ancillary technology of mobile dovecotes for messenger pigeons had the greatest impact. Owing to the rapid perfection of aviation during the war, mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Intelligence
The difficulty of defining or measuring intelligence in non-human animals makes the subject difficult to study scientifically in birds. In general, birds have relatively large brains compared to their head size. The visual and auditory senses are well developed in most species, though the tactile and olfactory senses are well realized only in a few groups. Birds communicate using visual signals as well as through the use of calls and song. The testing of intelligence in birds is therefore usually based on studying responses to sensory stimuli. The corvids ( ravens, crows, jays, magpies, etc.) and psittacines (parrots, macaws, and cockatoos) are often considered the most intelligent birds, and are among the most intelligent animals in general. Pigeons, finches, domestic fowl, and birds of prey have also been common subjects of intelligence studies. Studies Bird intelligence has been studied through several attributes and abilities. Many of these studies have been on birds such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Intelligence
Animal cognition encompasses the mental capacities of non-human animals including insect cognition. The study of animal conditioning and learning used in this field was developed from comparative psychology. It has also been strongly influenced by research in ethology, behavioral ecology, and evolutionary psychology; the alternative name cognitive ethology is sometimes used. Many behaviors associated with the term ''animal intelligence'' are also subsumed within animal cognition. Researchers have examined animal cognition in mammals (especially primates, cetaceans, elephants, dogs, cats, pigs, horses, cattle, raccoons and rodents), birds (including parrots, fowl, corvids and pigeons), reptiles ( lizards, snakes, and turtles), fish and invertebrates (including cephalopods, spiders and insects). Historical background Earliest inferences The mind and behavior of non-human animals has captivated the human imagination for centuries. Many writers, such as Descartes, have s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algorithm
In mathematics and computer science, an algorithm () is a finite sequence of rigorous instructions, typically used to solve a class of specific Computational problem, problems or to perform a computation. Algorithms are used as specifications for performing calculations and data processing. More advanced algorithms can perform automated deductions (referred to as automated reasoning) and use mathematical and logical tests to divert the code execution through various routes (referred to as automated decision-making). Using human characteristics as descriptors of machines in metaphorical ways was already practiced by Alan Turing with terms such as "memory", "search" and "stimulus". In contrast, a Heuristic (computer science), heuristic is an approach to problem solving that may not be fully specified or may not guarantee correct or optimal results, especially in problem domains where there is no well-defined correct or optimal result. As an effective method, an algorithm ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Pigeons’ Training Environment
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chagall
Marc Chagall; russian: link=no, Марк Заха́рович Шага́л ; be, Марк Захаравіч Шагал . (born Moishe Shagal; 28 March 1985) was a Russian-French artist. An early modernism, modernist, he was associated with several major art movement, artistic styles and created works in a wide range of artistic formats, including painting, drawings, book illustrations, stained glass, stage sets, ceramics, tapestries and fine art prints. Born in the Russian Empire, today Belarus, he was of Russian Jews, Jewish origin. Before World War I, he travelled between Saint Petersburg, Paris, and Berlin. During this period he created his own mixture and style of modern art based on his idea of Eastern Europe and Jewish folk culture. He spent the wartime years in Belarus, becoming one of the country's most distinguished artists and a member of the modernist avant-garde, founding the Vitebsk Museum of Modern Art, Vitebsk Arts College before leaving again for Paris in 1923 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Van Gogh
Vincent Willem van Gogh (; 30 March 185329 July 1890) was a Dutch Post-Impressionist painter who posthumously became one of the most famous and influential figures in Western art history. In a decade, he created about 2,100 artworks, including around 860 oil paintings, most of which date from the last two years of his life. They include landscapes, still lifes, portraits and self-portraits, and are characterised by bold colours and dramatic, impulsive and expressive brushwork that contributed to the foundations of modern art. Not commercially successful, he struggled with severe depression and poverty, eventually leading to his suicide at age thirty-seven. Born into an upper-middle class family, Van Gogh drew as a child and was serious, quiet, and thoughtful. As a young man, he worked as an art dealer, often traveling, but became depressed after he was transferred to London. He turned to religion and spent time as a Protestant missionary in southern Belgium. He drifted in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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