Sign Language Facts

Questions answered by this fact sheet:

1. What is American Sign Language?
2. Is Sign Language the Same Around the Globe?
3. Where Did ASL Originate?
4. How Does ASL Compare With Spoken Language?
5. Why Does ASL Become a First Language for Many Deaf People?
6. Why Emphasize Early Language Learning?
7. What Does Recent Research Say About ASL and Other Sign Languages?

What is American Sign Language?

American Sign Language (ASL) is a complete, complex language that employs signs made with the hands and other movements, including facial expressions and postures of the body. It is the first language of many deaf North Americans, and one of several communication options available to deaf people. ASL is said to be the fourth most commonly used language in the United States.

Is Sign Language the Same Around the Globe?

No one form of sign language is universal. For example, British Sign Language (BSL) differs notably from ASL. Different sign languages are used in different countries or regions. [h3Where Did ASL Originate? The exact beginnings of ASL are not clear. Many people believe that ASL came mostly from French Sign Language (FSL). Others claim that the foundation for ASL existed before FSL was introduced in America in 1817. It was in that year that a French teacher named Laurent Clerc, brought to the United States by Thomas Gallaudet, founded the first school for the deaf in Hartford, Connecticut. Clerc began teaching FSL to Americans, though many of his students were already fluent in their own forms of local, natural sign language. Today's ASL likely contains some of this early American signing. Which language had more to do with the formation of modern ASL is difficult to prove. Modern ASL and FSL share some elements, including a substantial amount of vocabulary. However, they are not mutually comprehensible.

How Does ASL Compare With Spoken Language?

In spoken language, the different sounds created by words and tones of voice (intonation) are the most important devices used to communicate. Sign language is based on the idea that sight is the most useful tool a deaf person has to communicate and receive information. Thus, ASL uses hand shape, position, and movement; body movements; gestures; facial expressions; and other visual cues to form its words. Like any other language, fluency in ASL happens only after a long period of study and practice.

Even though ASL is used in America, it is a language completely separate from English. It contains all the fundamental features a language needs to function on its own--it has its own rules for grammar, punctuation, and sentence order. ASL evolves as its users do, and it also allows for regional usage and jargon. Every language expresses its features differently; ASL is no exception. Whereas English speakers often signal a question by using a particular tone of voice, ASL users do so by raising the eyebrows and widening the eyes. Sometimes, ASL users may ask a question by tilting their bodies forward while signaling with their eyes and eyebrows.

Just as with other languages, specific ways of expressing ideas in ASL vary as much as ASL users themselves do. ASL users may choose from synonyms to express common words. ASL also changes regionally, just as certain English words are spoken differently in different parts of the country. Ethnicity, age, and gender are a few more factors that affect ASL usage and contribute to its variety.

Why Does ASL Become a First Language for Many Deaf People?

Parents are often the source of a child's early acquisition of language. A deaf child who is born to deaf parents who already use ASL will begin to acquire ASL as naturally as a hearing child picks up spoken language from hearing parents. However, language is acquired differently by a deaf child with hearing parents who have no prior experience with ASL. Some hearing parents choose to introduce sign language to their deaf children. Hearing parents who choose to learn sign language often learn it along with their child. Nine out of every ten children who are born deaf are born to parents who hear. Other communication models, based in spoken English, exist apart from ASL, including oral, auditory-verbal, and cued speech. As with any language, interaction with other children and adults is also a significant factor in acquisition.

Why Emphasize Early Language Learning?

Parents should introduce deaf children to language as early as possible. The earlier any child is exposed to and begins to acquire language, the better that child's communication skills will become. Research suggests that the first six months are the most crucial to a child's development of language skills. All newborns should be screened for deafness or hearing loss before they leave the hospital or within the first month of life. Very early discovery of a child's hearing loss or deafness provides parents with an opportunity to learn about communication options. Parents can then start their child's language learning process