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Smile
A smile is a facial expression formed primarily by flexing the muscles at the sides of the mouth. Some smiles include a contraction of the muscles at the corner of the eyes, an action known as a Duchenne smile. Among humans, a smile expresses delight, sociability, happiness, joy, or amusement. It is distinct from a similar but usually involuntary expression of anxiety known as a grimace. Although cross-cultural studies have shown that smiling is a means of communication throughout the world, there are large differences among different cultures, religions, and societies, with some using smiles to convey confusion or embarrassment. Evolutionary background Primatologist Signe Preuschoft traces the smile back over 30 million years of evolution to a "fear grin" stemming from monkeys and apes, who often used barely clenched teeth to portray to predators that they were harmless or to signal submission to more dominant group members. The smile may have evolved differently among spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mona Lisa
The ''Mona Lisa'' ( ; it, Gioconda or ; french: Joconde ) is a half-length portrait painting by Italian artist Leonardo da Vinci. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, the most sung about, the most parodied work of art in the world". The painting's novel qualities include the subject's enigmatic expression, the monumentality of the composition, the subtle modelling of forms, and the atmospheric illusionism. The painting has been definitively identified to depict Italian noblewoman Lisa Gherardini, the wife of Francesco del Giocondo. It is painted in oil on a white Lombardy poplar panel. Leonardo never gave the painting to the Giocondo family, and later it is believed he left it in his will to his favored apprentice Salaì. It had been believed to have been painted between 1503 and 1506; however, Leonardo may have continued working on it as late as 1517. It was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laughter
Laughter is a pleasant physical reaction and emotion consisting usually of rhythmical, often audible contractions of the diaphragm and other parts of the respiratory system. It is a response to certain external or internal stimuli. Laughter can rise from such activities as being tickled, or from humorous stories or thoughts. Most commonly, it is considered an auditory expression of a number of positive emotional states, such as joy, mirth, happiness, or relief. On some occasions, however, it may be caused by contrary emotional states such as embarrassment, surprise, or confusion such as nervous laughter or courtesy laugh. Age, gender, education, language, and culture are all indicators as to whether a person will experience laughter in a given situation. Some other species of primate (chimpanzees, gorillas and orangutans) show laughter-like vocalizations in response to physical contact such as wrestling, play chasing or tickling. Laughter is a part of human behavior regulat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygomaticus Major Muscle
The zygomaticus major muscle is a muscle of the human body. It extends from each zygomatic arch (cheekbone) to the corners of the mouth. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile. Bifid zygomaticus major muscle is a notable variant, and may cause cheek dimples. Structure The zygomaticus major muscle originates from the upper margin of the temporal process, part of the lateral surface of the zygomatic bone. It inserts into tissue at the corner of the mouth. Nerve supply The zygomaticus major muscle is supplied by a buccal branch and a zygomatic branch of the facial nerve (VII). Variation The zygomaticus major muscle may occur in a bifid form, with two fascicles that are partially or completely separate from each other but adjacent. Usually a single unit, dimples are caused by variations in form. It is thought that cheek dimples are caused by bifid zygomaticus major muscle. Function The zygomat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Eye
The human eye is a sensory organ, part of the sensory nervous system, that reacts to visible light and allows humans to use visual information for various purposes including seeing things, keeping balance, and maintaining circadian rhythm. The eye can be considered as a living optical device. It is approximately spherical in shape, with its outer layers, such as the outermost, white part of the eye (the sclera) and one of its inner layers (the pigmented choroid) keeping the eye essentially light tight except on the eye's optic axis. In order, along the optic axis, the optical components consist of a first lens (the cornea—the clear part of the eye) that accomplishes most of the focussing of light from the outside world; then an aperture (the pupil) in a diaphragm (the iris—the coloured part of the eye) that controls the amount of light entering the interior of the eye; then another lens (the crystalline lens) that accomplishes the remaining focussing of light into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emotion
Emotions are mental states brought on by neurophysiological changes, variously associated with thoughts, feelings, behavioral responses, and a degree of pleasure or displeasure. There is currently no scientific consensus on a definition. Emotions are often intertwined with mood, temperament, personality, disposition, or creativity. Research on emotion has increased over the past two decades with many fields contributing including psychology, medicine, history, sociology of emotions, and computer science. The numerous theories that attempt to explain the origin, function and other aspects of emotions have fostered more intense research on this topic. Current areas of research in the concept of emotion include the development of materials that stimulate and elicit emotion. In addition, PET scans and fMRI scans help study the affective picture processes in the brain. From a mechanistic perspective, emotions can be defined as "a positive or negative experience that is as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimple
A dimple, also called a gelasin (, ) is a small natural indentation in the flesh on a part of the human body, most notably in the cheek. Numerous cultures believe that cheek dimples are a good luck charm that entices people who perceive them as physically attractive, but they are also associated with heroism and innocence, which has been included in literature for many centuries. Medical research debates whether cheek dimples can be inherited or which type of allele they are, but it is certain that humans with cheek dimples are more likely to have them in both cheeks. Depth and length appearances are affected by the shape of the skull and dimples can appear and disappear due to age. There are four types of facial dimples, including cheek, and the cleft chin (sometimes nicknamed a "chin dimple"). Overview Cheek dimples when present, show up when a person makes a facial expression, such as smiling, whereas a chin dimple is a small line on the chin that stays on the chin without m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mémoires Secrets
The ''Mémoires secrets pour servir à l'histoire de la République des Lettres en France depuis 1762 jusqu'à nos jours'' ("Secret Memoirs Serving as a History of the Republic of Letters in France from 1762 until Our Days") is an anonymous chronicle of events that occurred between 1762 and 1787. Historian Dena Goodman thinks it started as a manuscript newsletter emanating from Paris. It was first published in London as a multi-volume set from 1781 to 1789. Thus, although the entries bear exact dates, they were not published until long after the events they describe. The ''Mémoires secrets'' offer an abundance of details about literary life in the 18th century: "At the center of the most brilliant debates for a quarter of a century, whether concerning the battle against the Jesuits, the opposition'' etween the Parlement of Paris and the French King', well-known affairs such as the affair of the diamond necklace, or the emergence of new aesthetics such as the bourgeois drama, Gluck ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salon (Paris)
The Salon (french: Salon), or rarely Paris Salon (French: ''Salon de Paris'' ), beginning in 1667 was the official art exhibition of the Académie des Beaux-Arts in Paris. Between 1748 and 1890 it was arguably the greatest annual or biennial art event in the Western world. At the 1761 Salon, thirty-three painters, nine sculptors, and eleven engravers contributed. Levey, Michael. (1993) ''Painting and sculpture in France 1700–1789''. New Haven: Yale University Press, p. 3. From 1881 onward, it has been managed by the Société des Artistes Français. Origins In 1667, the royally sanctioned French institution of art patronage, the Académie royale de peinture et de sculpture (a division of the Académie des beaux-arts), held its first semi-public art exhibit at the Salon Carré. The Salon's original focus was the display of the work of recent graduates of the École des Beaux-Arts, which was created by Cardinal Mazarin, chief minister of France, in 1648. Exhibition at the Salo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Élisabeth Vigée Le Brun
Élisabeth Louise Vigée Le Brun (; 16 April 1755 – 30 March 1842), also known as Madame Le Brun, was a French portrait painter, especially of women, in the late 18th and early 19th centuries. Her artistic style is generally considered part of the aftermath of Rococo with elements of an adopted Neoclassical style. Her subject matter and color palette can be classified as Rococo, but her style is aligned with the emergence of Neoclassicism. Vigée Le Brun created a name for herself in Ancien Régime society by serving as the portrait painter to Marie Antoinette. She enjoyed the patronage of European aristocrats, actors, and writers, and was elected to art academies in ten cities. Vigée Le Brun created 660 portraits and 200 landscapes. In addition to many works in private collections, her paintings are owned by major museums, such as the Louvre Paris, Uffizi Florence, Hermitage Museum Saint Petersburg, National Gallery in London, Metropolitan Museum of Art in New York and many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helen Fisher (anthropologist)
Helen Elizabeth Fisher (born May 31, 1945) is an American anthropologist, human behavior researcher, and self-help author. She is a biological anthropologist, is a senior research fellow, at The Kinsey Institute, Indiana University, and a member of the Center For Human Evolutionary Studies in the Department of Anthropology at Rutgers University. Prior to Rutgers University, she was a research associate at the American Museum of Natural History in New York City. She is a leading expert on the biology of love and attraction. Fisher said that when she began researching for her dissertation, she considered the one thing all humans have in common – their reproductive strategies. She is now the most referenced scholar in the love research community. In 2005, she was hired by match.com to help build chemistry.com, which used her research and experience to create both hormone-based and personality-based matching systems. She was one of the main speakers at the 2006 and 2008 TED confere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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