Sign language

Two sign language Intepreters working as a team for a school.

A sign language (also signed language) is a language which uses manual communication, body language and lip patterns instead of sound to convey meaning—simultaneously combining hand shapes, orientation and movement of the hands, arms or body, and facial expressions to fluidly express a speaker's thoughts. Sign languages commonly develop in deaf communities, which include people who are deaf or hard of hearing, friends and families of deaf people, and interpreters. Sign language is a system of accepted gestures, mime, hand signs and finger spelling, the use of hand positions to represent the letters of the alphabet. Signs often represent complete ideas, not only words. Sign language is mainly used by deaf and mute people in order to communicate.

Sign language differs from one region to another, just as in spoken languages, and are mostly mutually unintelligible. However, when people using different signed languages meet, communication can be easier than when people of different spoken languages meet. This is not because sign languages are universal, but because deaf people may be more patient when communicating, and are comfortable including gesture and mime.

Their complex spatial grammars are markedly different than spoken language. In many cases, various signed "modes" of spoken languages have been developed, such as Signed English and Warlpiri Sign Language. Hundreds of sign languages are in use around the world and are at the core of local Deaf cultures. Some sign languages have obtained some form of legal recognition, while others have no status at all.

History and development of sign language

Generally, each spoken language has a sign language counterpart because each linguistic population contains Deaf members who will generate a sign language. Geographical or cultural forces will isolate populations and lead to the generation of different and distinct spoken languages; the same forces operate on signed languages, therefore they tend to maintain their identities through time in roughly the same areas of influence as the local spoken languages. This occurs even though sign languages have little or no relation to the spoken languages of the lands in which they arise. There are notable exceptions to this pattern, however, as some geographic regions sharing a spoken language have multiple, unrelated signed languages. Variations within a 'national' sign language can usually be correlated to the geographic location of (residential) schools for the deaf.

File:Jw signs convention.jpg

Jehovah's Witnesses Convention in Chilean Sign Language.

Eastern societies are not as well documented, but the recorded history of sign language in Western society extends from the 16th century as a visual language or method of communication. These languages were always modeled after the natural sign languages already in use by the deaf cultures in their area of origin, often with additions to show aspects of the grammar of the local spoken languages.

Standardized sign languages have been used in Italy since the 17th century for the instruction of the deaf. In 1755, Abbé de l'Épée founded the first public school for deaf children in Paris. Old French Sign Language was developed and used in Paris by the l’Abbé Charles Michel de l’Epée in his school for the deaf. His lessons were based upon his observations of deaf people signing with hands in the streets of Paris. Synthesized with French grammar, it evolved into the French Sign Language. Laurent Clerc was a highly gifted graduate of the deaf school in Paris. He went to the United States with Thomas Hopkins Gallaudet to found the American School for the Deaf in Hartford, Connecticut in 1817. Hearing teachers of deaf schools, such as Thomas Hopkins Gallaudet, did not invent sign languages, but were instrumental in its development. Gallaudet's son, Edward Miner Gallaudet founded the first college for the deaf in 1864 in Washington, D.C., which in 1986 became Gallaudet University, the only liberal arts university for the deaf in the world.

On the whole, deaf sign languages are independent of oral languages and follow their own paths of development. Because they developed on their own, British Sign Language and American Sign Language are quite different and mutually unintelligible, even though the hearing people of Britain and America share the same oral language. American Sign Language does have some similarities to French Sign Language.

International Sign, formerly known as Gestuno, was created in 1973 to enhance communication among members of the deaf community throughout the world. It is an artificially constructed language and though some people are reported to use it fluently, it is more of a pidgin than a fully formed language. International Sign is used mainly at international Deaf events such as the Deaflympics and meetings of the World Federation of the Deaf.

Linguistics of sign

In linguistic terms, sign languages are rich and complex, despite the common misconception that they are not "real languages." Professional linguists have studied many sign languages and found them to have every linguistic component required to be classed as true languages. William Stokoe started groundbreaking research into sign language in the 1960's.

Sign languages are not merely pantomime but are made of largely arbitrary signs that have no necessary visual relationship to their referent, much as most spoken language is not onomatopoeic. Nor are they a visual renditions of an oral language. They have complex grammars of their own, and can be used to discuss any topic, from the simple and concrete to the philosophical and abstract. For example, in terms of syntax, ASL shares more with spoken Japanese than it does with English.(Karen Nakamura,1995)

Sign languages, like oral languages, organize elementary, meaningless units (phonemes; once called cheremes in the case of sign languages) into meaningful semantic units. The elements of a sign are Hand shape (or Handform), Orientation (or Palm Orientation), Location (or Place of Articulation), Movement, and Non-manual markers (or Facial Expression), summarized in the acronym HOLME.

Common linguistic features of deaf sign languages are extensive use of classifiers, a high degree of inflection, and a topic-comment syntax. Many unique linguistic features emerge from sign languages' ability to produce meaning in different parts of the visual field simultaneously. For example, the recipient of a signed message can read meanings carried by the hands, the facial expression and the body posture at the same time. This is in contrast to oral languages, where the sounds that comprise words are mostly sequential (tone being an exception).

The manual alphabet is used in sign languages, mostly for proper names and technical or specialized vocabulary. The use of fingerspelling was once taken as evidence that sign languages are simplified versions of oral languages, but in fact it is merely one tool among many. Fingerspelling can sometimes be a source of new signs, which are called lexicalized signs.

Spatial grammar and simultaneity

Sign languages are able to capitalize on the unique features of the visual medium. Oral language is linear and only one sound can be made or received at a time. Sign language, instead, is visual; hence a whole scene can be taken in at once. Information can be loaded into several channels and expressed simultaneously. As an illustration, in English one could utter the phrase, "I drove here." To add information about the drive, one would have to make a longer phrase or even add a second, such as, "I drove here along a winding road," or "I drove here. It was a nice drive." However, in American Sign Language, information about the shape of the road or the pleasing nature of the drive can be conveyed simultaneously with the verb 'drive' by inflecting the motion of the hand, or by taking advantage of non-manual signals such as body posture and facial expression, at the same time that the verb 'drive' is being signed. Therefore, whereas in English the phrase "I drove here and it was very pleasant" is longer than "I drove here," in American Sign Language the two may be the same length.

Written forms of sign languages

Sign languages are not often written, and documented written systems were not created till the 1960's. Most deaf signers read and write the oral language of their country. However, there have been several attempts at developing scripts for sign language. These have included both "phonetic" systems, such as HamNoSys (the Hamburg Notational System) and SignWriting, which can be used for any sign language, and "phonemic" systems such as the one used by William Stokoe in his 1965 Dictionary of American Sign Language, which are designed for a specific language.

The phonemic systems of oral languages are primarily sequential: that is, the majority of phonemes are produced in a sequence one after another, although many languages also have non-sequential aspects such as tone. As a consequence, traditional phonemic writing systems are also sequential, with at best diacritics for non-sequential aspects such as stress and tone. Sign languages have a higher non-sequential component, with many "phonemes" produced simultaneously. For example, signs may involve fingers, hands, and face moving simultaneously, or the two hands moving in different directions. Traditional writing systems are not designed to deal with this level of complexity.

The Stokoe notation is sequential, with a conventionalized order of a symbol for the location of the sign, then one for the hand shape, and finally one (or more) for the movement. The orientation of the hand is indicated with an optional diacritic before the hand shape. When two movements occur simultaneously, they are written one atop the other; when sequential, they are written one after the other. Stokoe used letters of the Latin alphabet and Arabic numerals to indicate the handshapes used in fingerspelling, such as 'A' for a closed fist, 'B' for a flat hand, and '5' for a spread hand; but non-alphabetic symbols for location and movement, such as '[]' for the trunk of the body, '×' for contact, and '^' for an upward movement.

SignWriting, being pictographic, is able to represent simultaneous elements in a single sign. SignWriting and HamNoSys, are pictographic, being conventionalized pictures of the hands, face, and body; others, such as the Stokoe notation, are more iconic. Neither the Stokoe nor HamNoSys scripts are designed to represent facial expressions or non-manual movements, both of which SignWriting accommodates easily, although this is being gradually corrected in HamNoSys.

Use of signs in hearing communities

While not full languages, many elaborate systems of manual communication have developed in situations where speech is not practical or permitted, such as cloistered religious communities, scuba diving, television recording studios, loud workplaces, stock exchanges, in baseball, while hunting (by groups such as the Kalahari bushmen), or in the game Charades. In Rugby Union the referee uses a limited but defined set of signs to communicate his/her decisions to the spectators. Recently, there has been a movement to teach and encourage the use of sign language with toddlers before they learn to talk and with non-deaf or hard-of-hearing children with other causes of speech impairment or delay. This is typically referred to as Baby Sign.

On occasion, where there are enough deaf people in the area, a deaf sign language has been taken up by an entire local community. Famous examples of this include Martha's Vineyard Sign Language in the USA, Kata Kolok in a village in Bali, Adamorobe Sign Language in Ghana and Yucatec Maya sign language in Mexico. In such communities deaf people are not socially disadvantaged.

Many Australian Aboriginal sign languages arose in a context of extensive speech taboos, such as during mourning and initiation rites. They are or were especially highly developed among the Warlpiri, Warumungu, Dieri, Kaytetye, Arrernte, Warlmanpa, and are based on their respective spoken languages.

A pidgin sign language arose among tribes of American Indians in the Great Plains region of North America (see Plains Indian Sign Language). It was used to communicate among tribes with different spoken languages. Unlike other sign languages developed by hearing people, it shares the spatial grammar of deaf sign languages.

Home sign

Sign systems are sometimes developed within a single family. For instance, when hearing parents with no sign language skills have a deaf child, an informal system of signs will naturally develop, unless repressed by the parents. The term for these mini-languages is home sign (sometimes homesign or kitchen sign).

Home sign arises due to the absence of any other way to communicate. Within the span of a single lifetime and without the support or feedback of a community, the child is forced to invent signals to facilitate the meeting of his or her communication needs. Although this kind of system is grossly inadequate for the intellectual development of a child and does not meet the standards linguists use to describe a complete language, it is a common occurrence. Home Sign is not recognized as an official language.

Benefits

In the academic realm, if a deaf student has a strong foundation in American Sign Language, his/her ability to develop English literacy skills improves. Colleges now recognize that it is possible for many deaf students to be literate in both languages and that they need to work with knowledgeable and skilled professionals in order to do so. Research has shown that mastery in language, and specifically in American Sign Language yields many benefits. One benefit is that the child is instilled with a sense of cultural identity, which enables them to bond with other deaf individuals. This then leads to greater self-esteem and a curiosity of the world, both of which will enrich the student academically and socially.^{[citation needed]}

References

ISBN links support NWE through referral fees

• Branson, J., D. Miller, & I G. Marsaja. (1996). "Everyone here speaks sign language, too: a deaf village in Bali, Indonesia." In: C. Lucas (ed.): Multicultural aspects of sociolinguistics in deaf communities. Washington, Gallaudet University Press, pp. 39-5
• Emmorey, Karen; & Lane, Harlan L. (Eds.). (2000). The signs of language revisited: An anthology to honor Ursula Bellugi and Edward Klima. Mahwah, NJ: Lawrence Erlbaum Associates. ISBN 0-8058-3246-7.
• Groce, Nora E. (1988). Everyone here spoke sign language: Hereditary deafness on Martha's Vineyard. Cambridge, MA: Harvard University Press. ISBN 0-674-27041-X.
• Kendon, Adam. (1988). Sign Languages of Aboriginal Australia: Cultural, Semiotic and Communicative Perspectives. Cambridge: Cambridge University Press.
• Klima, Edward S.; & Bellugi, Ursula. (1979). The signs of language. Cambridge, MA: Harvard University Press. ISBN 0-674-80795-2.
• Krzywkowska, Grazyna (2006). "Przede wszystkim komunikacja", an article about a dictionary of Hungarian sign language on the internet, in Polish.
• Lane, Harlan L. (Ed.). (1984). The Deaf experience: Classics in language and education. Cambridge, MA: Harvard University Press. ISBN 0-674-19460-8.
• Lane, Harlan L. (1984). When the mind hears: A history of the deaf. New York: Random House. ISBN 0-394-50878-5.
• Padden, Carol; & Humphries, Tom. (1988). Deaf in America: Voices from a culture. Cambridge, MA: Harvard University Press. ISBN 0-674-19423-3.
• Poizner, Howard; Klima, Edward S.; & Bellugi, Ursula. (1987). What the hands reveal about the brain. Cambridge, MA: MIT Press.
• Sacks, Oliver W. (1989). Seeing voices: A journey into the land of the deaf. Berkeley: University of California Press. ISBN 0-520-06083-0.
• Sandler, Wendy; & Lillo-Martin, Diane. (2001). Natural sign languages. In M. Aronoff & J. Rees-Miller (Eds.), Handbook of linguistics (pp. 533-562). Malden, MA: Blackwell Publishers. ISBN 0-631-20497-0.
• Stiles-Davis, Joan; Kritchevsky, Mark; & Bellugi, Ursula (Eds.). (1988). Spatial cognition: Brain bases and development. Hillsdale, NJ: L. Erlbaum Associates. ISBN 0-8058-0046-8; ISBN 0-8058-0078-6.
• Stokoe, William C. (1960). Sign language structure: An outline of the visual communication systems of the American deaf. Studies in linguistics: Occasional papers (No. 8). Buffalo: Dept. of Anthropology and Linguistics, University of Buffalo.

External links

• ABC Slider Learn ASL fingerspelling.
• ASL Lesson Plans ASL dictionary, resources and online lessons.
• ASL Browser Video dictionary of ASL signs
• ASL Pro ASL educational resource website featuring over 11,000 ASL Signs.
• http://www.auslan.org.au/index.cfm
• British Sign Language Resources, information, online course, and CDROM.
• BSL See Hear information page at the BBC Resources for BSL
• BSL video clips at the RNID
• Deaf Cinema List Films in ASL and other sign languages
• Dictionary of the Flemish Sign Language - Woordenboek Vlaamse Gebarentaal
• Handspeak ASL dictionary and other resources
• Uses of Sign Language
• Why Learn Sign Language

Credits

New World Encyclopedia writers and editors rewrote and completed the Wikipedia article in accordance with New World Encyclopedia standards. This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution. Credit is due under the terms of this license that can reference both the New World Encyclopedia contributors and the selfless volunteer contributors of the Wikimedia Foundation. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here:

• Sign_language  ^history
• History_of_sign_language  ^history

The history of this article since it was imported to New World Encyclopedia:

• History of "Sign language"

Note: Some restrictions may apply to use of individual images which are separately licensed.