The widely used manual language of the deaf, or language of signs, was first systematized in the 18th cent. by the French abbé Charles Michel de l'Épée. It was brought to the United States by T. H. Gallaudet . As with any sign language, only a small percentage of signs suggest the form of thought they represent. Such sign languages also may have a syntax and grammar that differs dramatically from the language spoken locally. This is true, for instance, of American Sign Language, which, developed for the deaf, is a non-English system used in the United States and parts of Canada. A number of written systems for representing manual languages have been developed, and dictionaries of signs have been compiled. Often sign language is taught along with speechreading (see lip reading ) and with a manual alphabet, i.e., a method of forming the letters of the alphabet by fixed positions of the fingers in the air. See also deafness .
See W. C. Stokoe, Semiotics and Human Sign Languages (1972) C. Baker and R. Battison, ed., Sign Language and the Deaf Community (1980) C. A. Padden, Interaction of Morphology and Syntax in American Sign Language (1988).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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