Clever Hans Effect
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Clever Hans Effect
Clever Hans (German: ''der Kluge Hans''; c. 1895 - c. 1916) was a horse that was claimed to have performed arithmetic and other intellectual tasks. After a formal investigation in 1907, psychologist Oskar Pfungst demonstrated that the horse was not actually performing these mental tasks, but was watching the reactions of his trainer. He discovered this artifact in the research methodology, wherein the horse was responding directly to involuntary cues in the body language of the human trainer, who was entirely unaware that he was providing such cues. In honour of Pfungst's study, the anomalous artifact has since been referred to as the ''Clever Hans effect'' and has continued to be important knowledge in the observer-expectancy effect and later studies in animal cognition. Pfungst was an assistant to German philosopher and psychologist Carl Stumpf, who incorporated the experience with Hans into his further work on animal psychology and his ideas on phenomenology. Spectacle Durin ...
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Phrenologist
Phrenology () is a pseudoscience which involves the measurement of bumps on the skull to predict mental traits.Wihe, J. V. (2002). "Science and Pseudoscience: A Primer in Critical Thinking." In ''Encyclopedia of Pseudoscience'', pp. 195–203. California: Skeptics Society.Hines, T. (2002). ''Pseudoscience and the Paranormal''. New York: Prometheus Books. p. 200 It is based on the concept that the brain is the organ of the mind, and that certain brain areas have localized, specific functions or modules. It was said that the brain was composed of different muscles, so those that were used more often were bigger, resulting in the different skull shapes. This led to the reasoning behind why everyone had bumps on the skull in different locations. The brain "muscles" not being used as frequently remained small and were therefore not present on the exterior of the skull. Although both of those ideas have a basis in reality, phrenology generalized beyond empirical knowledge in a way that ...
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Beatrix Gardner
Beatrix Tugendhut Gardner (July 13, 1933 – June 5, 1995) was an Austrian zoologist who became well known for the research that she conducted in the United States. She is most well known for her sign language studies with Washoe the chimpanzee, who was the first ape to learn sign language. Early life and education Gardner was born on July 13, 1933 in Vienna, Austria. She lived in Poland during Nazi rule, and moved with her family to a suburb in São Paulo, Brazil, to escape the Nazis. She and her family remained in Brazil for six years, at which point Beatrix moved to the United States to attend school. Beatrix, often spelled "Beatrice", attended Radcliffe College in Massachusetts and received her bachelor's degree in 1954. In 1956, she earned her master's degree from Brown University, working with Carl Pfaffman. She completed her PhD in zoology at Oxford University in 1959 where she studied under the mentorship of Niko Tinbergen. Her focus was studying food deprivation an ...
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Allen Gardner
Allen, Allen's or Allens may refer to: Buildings * Allen Arena, an indoor arena at Lipscomb University in Nashville, Tennessee * Allen Center, a skyscraper complex in downtown Houston, Texas * Allen Fieldhouse, an indoor sports arena on the University of Kansas campus in Lawrence * Allen House (other) * Allen Power Plant (other) Businesses *Allen (brand), an American tool company *Allen's, an Australian brand of confectionery *Allens (law firm), an Australian law firm formerly known as Allens Arthur Robinson *Allen's (restaurant), a former hamburger joint and nightclub in Athens, Georgia, United States *Allen & Company LLC, a small, privately held investment bank *Allens of Mayfair, a butcher shop in London from 1830 to 2015 *Allens Boots, a retail store in Austin, Texas * Allens, Inc., a brand of canned vegetables based in Arkansas, US, now owned by Del Monte Foods *Allen's department store, a.k.a. Allen's, George Allen, Inc., Philadelphia, USA People * Allen ...
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Alex (parrot)
Alex (May 1976 – 6 September 2007) was a grey parrot and the subject of a thirty-year experiment by animal psychologist Irene Pepperberg, initially at the University of Arizona and later at Harvard University and Brandeis University. When Alex was about one year old, Pepperberg bought him at a pet shop. In her book "Alex & Me", Pepperberg describes her unique relationship with Alex and how Alex helped her understand animal minds. Alex was an acronym for avian language experiment, or avian learning experiment. He was compared to Albert Einstein and at two years old was correctly answering questions made for six-year-olds. Before Pepperberg's work with Alex, it was widely believed in the scientific community that a large primate brain was needed to handle complex problems related to language and understanding; birds were not considered to be intelligent, as their only common use of communication was mimicking and repeating sounds to interact with each other. However, Alex's ac ...
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Parrot
Parrots, also known as psittacines (), are birds of the roughly 398 species in 92 genera comprising the order Psittaciformes (), found mostly in tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). One-third of all parrot species are threatened by extinction, with higher aggregate extinction risk ( IUCN Red List Index) than any other comparable bird group. Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere, as well. The greatest diversity of parrots is in South America and Australasia. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly coloured, and some are multi-coloured. Most parrots exhibit little or no sexual dimorphism in the visual spectrum. They form the most ...
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Irene Pepperberg
Irene Maxine Pepperberg (born April 1, 1949) is a scientist noted for her studies in animal cognition, particularly in relation to parrots. She has been a professor, researcher and/or lecturer at multiple universities, and she is currently a research associate and lecturer at Harvard University. Pepperberg also serves on the Advisory Council of METI (Messaging Extraterrestrial Intelligence). She is well known for her comparative studies into the cognitive fundamentals of language and communication, and she was one of the first to work on language learning in animals other than human species (exemplified by the Washoe project), by extension to a bird species. Pepperberg is also active in wildlife conservation, especially in relation to parrots. Early life, family and education Born in 1949 as Irene Platzblatt in Brooklyn, New York City, New York, she was an only child. Her father, Robert Platzblatt, was a biochemist and middle school teacher. Her parents were both first-genera ...
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Comparative Psychologist
Comparative psychology refers to the scientific study of the behavior and mental processes of non-human animals, especially as these relate to the phylogenetic history, adaptive significance, and development of behavior. Research in this area addresses many different issues, uses many different methods and explores the behavior of many different species from insects to primates. Comparative psychology is sometimes assumed to emphasize cross-species comparisons, including those between humans and animals. However, some researchers feel that direct comparisons should not be the sole focus of comparative psychology and that intense focus on a single organism to understand its behavior is just as desirable; if not more so. Donald Dewsbury reviewed the works of several psychologists and their definitions and concluded that the object of comparative psychology is to establish principles of generality focusing on both proximate and ultimate causation.Dewsbury, D. (1984). ''Comparative Ps ...
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Self-fulfilling Prophecy
A self-fulfilling prophecy is a prediction that comes true at least in part as a result of a person's or group of persons' belief or expectation that said prediction would come true. This suggests that people's beliefs influence their actions. The principle behind this phenomenon is that people create consequences regarding people or events, based on previous knowledge of the subject. There are three factors within an environment that can come together to influence the likelihood of a self-fulfilling prophecy becoming a reality: appearance, perception, and belief. When a phenomenon cannot be seen, appearance is what we rely upon when a self-fulfilling prophecy is in place. When it comes to a self-fulfilling prophecy there also must be a distinction "between 'brute and institutional' facts". The philosopher John Searle states the difference as "facts hatexist independently of any human institutions; institutional facts can only exist within institutions." There is an inability of ...
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Animal Communication
Animal communication is the transfer of information from one or a group of animals (sender or senders) to one or more other animals (receiver or receivers) that affects the current or future behavior of the receivers. Information may be sent intentionally, as in a courtship display, or unintentionally, as in the transfer of scent from predator to prey. Information may be transferred to an "audience" of several receivers. Animal communication is a rapidly growing area of study in disciplines including animal behavior, sociology, neurology and animal cognition. Many aspects of animal behavior, such as symbolic name use, emotional expression, learning and sexual behavior, are being understood in new ways. When the information from the sender changes the behavior of a receiver, the information is referred to as a "signal". Signalling theory predicts that for a signal to be maintained in the population, both the sender and receiver should usually receive some benefit from the interac ...
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Human Position
Human positions refer to the different physical configurations that the human body can take. There are several synonyms that refer to human positioning, often used interchangeably, but having specific nuances of meaning. *''Position'' is a general term for a configuration of the human body. *'' Posture'' means an intentionally or habitually assumed position. *''Pose'' implies an artistic, aesthetic, athletic, or spiritual intention of the position. *''Attitude'' refers to postures assumed for purpose of imitation, intentional or not, as well as in some standard collocations in reference to some distinguished types of posture: "Freud never assumed a fencer's attitude, yet almost all took him for a swordsman." *''Bearing'' refers to the manner of the posture, as well as of gestures and other aspects of the conduct taking place. Basic positions While not moving, a human is usually in one of the following basic positions: All-fours This is the static form of crawling which is in ...
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Blinders
Blinkers, sometimes known as blinders, are a piece of horse tack that prevent the horse seeing to the rear and, in some cases, to the side. Description Blinkers are usually made of leather or plastic cups placed on either side of a horse's eyes - attached either to a bridle or to an independent hood. Blinkers that have a peep hole cut in the back of the cup are known as ''visors''. Many racehorse trainers believe that blinkers keep horses focused on what is in front, encouraging them to pay attention to the race rather than to distractions such as crowds. Additionally, driving horses commonly wear blinkers to keep them from being distracted or spooked, especially on crowded city streets. Most equestrian disciplines, other than racing and harness competition, do not permit the use of blinkers at any time, under penalty of elimination. In racing, blinkers are usually seen attached to a synthetic hood placed under the bridle. In driving, they are attached to the bridle's chee ...
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