American Sign Language
American Sign Language is the dominant sign language in the United States, Canada and parts of Mexico. American Sign Language is usually abbreviated ASL though it has also been known as Ameslan. As with other sign languages, its grammar and syntax are separate and distinct from the spoken language(s) spoken in its area of influence. It originated around the turn of the century as the sign languages of the American Indians, French Sign Language, and the sign language of the residents of Martha's Vineyard merged with one another and probably other linguistic influences at the first school for the deaf in America, established by Thomas Hopkins Gallaudet.
ASL is a natural language as proved to the satisfaction of the linguistic community by William Stokoe. It is a manual language meaning that the information is expressed not with combinations of sounds but with combinations of handshapes, movements of the hands, arms and body, and facial expressions. It is used natively and predominantly by the deaf and hard-of-hearing of the United States and Canada.
Although it often seems as though the signs are meaningful of themselves, in fact they can be as arbitrary as words in spoken language. For example, hearing children often make the mistake of using "you" to refer to themselves, since others refer to them as "you." Children who acquire the sign YOU (pointing at one's interlocutor) make similar mistakes – they will point at others to mean themselves, indicating that even something as seemingly explicit as pointing is an arbitrary sign in ASL, like words in a spoken language.
However, Edward Klima and Ursula Bellugi have modified the common theory that signs can be self-explanatory by grouping signs into three categories:
- Transparent: Non-signers can usually correctly guess the meaning
- Translucent: Meaning makes sense to non-signers once it is explained
- Opaque: Meaning cannot be guessed by non-signers
Klima and Bellugi used American Sign Language in formulating that classification. The theory that signs are self-explanatory can be conclusively disproved by the fact that non-signers cannot understand fluent, continuous sign language. The majority of signs are opaque.
The grammar of ASL uses spatial locations, motion, and context to indicate semantics. For example, pronouns involve signing a noun, pointing at a spot near the signer, and then "signing to" that spot as if it were the noun. Differences in the degree of a verb, adjective, or adverb may be indicated by exaggerating movements in its sign. Verb tenses can be expressed by adding a clause to indicate the time frame. To indicate emotional inflection, signers use facial expressions that are exaggerated over what a hearing person would use.
In recent years, it has been shown that ASL has had a positive impact on the intellect of hearing children who are exposed to it. When infants are taught the language early, parents are able to respond accordingly to the infant at a developmental stage when verbal speech, which requires extremely fine control of many, interacting parts, is not yet able to be formed. The ability of the child to actively communicate and interact earlier than would otherwise be possible accelerates the cognitive development of the child.
ASL has allegedly been taught to chimpanzees, bonobos, and gorillas. Several of the animals have been said to have mastered more than one hundred signs, though not all agree with the ability of the primates to sign. For examle, when the Washoe research team asked the handlers of the chimp to write signs down whenever they witnessed them being produced by Washoe, the hearing people on the team turned in long lists of signs while the only deaf native speaker of ASL on the team turned in blank lists. She explained that what she saw were not signs at all, but simply gestures. Further fomenting the controversy, the researchers in the studies of Koko and Washoe refused to share their raw data with the scientific community.
See also
External link
- About ASL - article at deaflibrary.org