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For gestures in computing, see gesture recognition. "Gestures" redirects here. For the rock group, see The Gestures. Military signallers use hand and body gestures to direct flight operations aboard aircraft carriers. A gesture is a form of non-verbal communication in which visible bodily actions communicate conventionalized particular messages, either in place of speech or together and in parallel with spoken words.[1] Gestures include movement of the hands, face, or other parts of the body. Gestures differ from physical non-verbal communication that does not communicate specific messages, such as purely expressive displays, proxemics, or displays of joint attention.[1] Gestures allow individuals to communicate a variety of feelings and thoughts, from contempt and hostility to approval and affection, often together with body language in addition to words when they speak. The use of gesture as language by some ethnic groups is more common than in others, and the amount of such gesturing that is considered culturally acceptable varies from one location to the next. Though gestures are not part of syntactic language, their processing takes place in the same areas such as the Broca's and Wernicke's areas used by speech and sign language.[2]
[edit] Studies of gestureGestures have been studied throughout the centuries from different view points. [3] Quintillian in the antiquity studied in his Institution Oratoria how gesture may be used in rhetorical discourse. Another broad study of gesture was published by John Bulwer in 1644.[4] Bulwer analyzed dozens of gestures and provided a guide on how to use gestures to increase eloquence and clarity for public speaking. Andrea De Jorio published an extensive account of gestural expression in 1832.[5] Today, one of the most prominent researchers in the field of gesture research is Adam Kendon. He has investigated many aspects of gestures, including their role in communication, conventionalization of gesture, integration of gesture and speech, and the evolution of language [6]. Other prominent researchers in this field include Susan Goldin-Meadow and David McNeill. Susan Goldin-Meadow (2003) has investigated intensively the role of gesture in problem solving in children[7]. David McNeill (1992, 2006)[8] has developed a broad theory about how gesture and speech are part of a single thought process. Adam Kendon is a leading authority on the study of gesture, and has also published important studies in social interaction. He has published over a hundred articles and several books on the role of the body in social interaction.[9] [edit] Social significanceMany animals, including humans, use gestures to initiate a mating ritual. This may include elaborate dances and other movements. Gestures play a major role in many aspects of human life. Gesturing is probably a universal; there has been no report of a community that does not gesture. Gestures are a crucial part of everyday conversation such as chatting, describing a route, negotiating prices on a market; they are ubiquitous. Gestures have been documented in the arts such as in Greek vase paintings, Indian Miniatures or European paintings. Gestures play a central role in religious or spiritual rituals such as the Christian sign of the cross. In Hinduism and Buddhism, a mudra (Sanskrit, literally "seal") is a symbolic gesture made with the hand or fingers. Each mudra has a specific meaning, playing a central role in Hindu and Buddhist iconography. An example is the Vitarka mudra, the gesture of discussion and transmission of Buddhist teaching. It is done by joining the tips of the thumb and the index together, while keeping the other fingers straight. [edit] Types of gestures Pointing with an extended finger is offensive in many cultures. Main article: Types of gestures Different types of gestures are distinguished. Well-known gestures are the so-called emblems or quotable gestures. These are culture-specific gestures that can be used as replacement for words. Communities have repertoires of such gestures. A single emblematic gesture can a have very different significance in different cultural contexts, ranging from complimentary to highly offensive [10] Other types of gestures are the ones we use when we speak. These gestures are closely coordinated with speech. Gestures and co-occurring speech express the same meaning. For example, a gesture that depicts the act of throwing may be synchronous with the utterance, "He threw the ball right into the window." [11] Other gestures, like the so-called beat gestures, are used in conjunction with speech and keep time with the rhythm of speech to emphasize certain words or phrases. These types of gestures are integrally connected to speech and thought processes.[11] The page Types of gestures discusses gestures made with one hand, two hands, hand and other body parts, and body and facial gestures. [edit] NeurologyGestures are processed in the same areas of the brain as speech and sign language such as the left inferior frontal gyrus (Broca's area) and the posterior middle temporal gyrus, posterior superior temporal sulcus and superior temporal gyrus (Wernicke's area).[2] It has been suggested that these parts of the brain originally supporting the pairing of gesture and meaning and then were adapted in human evolution "for the comparable pairing of sound and meaning as voluntary control over the vocal apparatus was established and spoken language evolved".[2] As a result, it underlies both symbolic gesture and spoken language in the present human brain. Their common neurological basis also supports the idea that symbolic gesture and spoken language are two parts of a single fundamental semiotic system that underlies human discourse.[11] [edit] Electronic interfaceMain article: Gesture recognition The movement of gestures can be used to interact with technology, using touch or multi-touch popularised by the iPhone, physical movement detection and visual motion capture, used in video game consoles. [edit] See also
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