What is the difference between ASL and English-type sign languages?
American Sign Language (ASL) is a distinct visual-gestural-kinesthetic language. While it borrows elements from spoken English and old French sign language, it has unique grammatical, lexical and linguistic features of its own. It is not English on the hands. Because ASL is not English, educators have developed a number of signed codes which use ASL vocabulary items, modify them to match English vocabulary, and put them together according to English grammatical rules. These codes have various names including Signed Exact English (SEE) and Manual Coded English (MCE). Additionally, when native speakers of English and native users of ASL try to communicate, the “language” that results is a mixture of both English and ASL vocabulary and grammar. This is referred to as PSE (Pidgin Signed English) or contact signing.