International Day of Sign Languages

  It has been some forty years since serious investigation of natural sign languages began to show that these languages are bona fide linguistic systems , with structures and rules and the full range of expressive power that characterize spoken languages. Researchers have spent most of that time demonstrating, with increasing rigor and formality, the sometimes surprising similarities between languages in the two modalities, spoken and signed. Concomitantly, scholars in the related disciplines of language acquisition and neurolinguistics have been discovering significant similarities between spoken and signed languages in these domains as well. It is safe to say that the academic world is now convinced that sign languages are real languages in every sense of the term . If this were the whole story, however, there would be no need for a chapter on sign languages in this volume. Each sign language would be seen as a language like any other, English, Hungarian, Central Alaskan Yu...

  We begin by offering a sketch of the evidence that sign languages have grammatical structures comparable to those of spoken languages. First we examine the structure of the sentence (syntax) , and then we move to the structure of the smaller units of language , those that may be compared to the meaningless but identifiable sounds of speech (phonology) . We will end this section with a discussion of the structure of words (morphology) .

  In order to have sentences, one must have words, and words – at least in spoken language – are pronounced as a series of sounds. What about the sign of sign language? Does it have a level of substructure like the spoken word? Since spoken and signed languages are produced and perceived by different physical systems – oral / aural, and manual / visual – one might expect to find the least amount of similarity across the two modalities at this level of analysis. Yet, here, too, there is much common ground. In 1960, William Stokoe published a monograph in which he demonstrated that the words of American Sign Language are not holistic gestures, but, rather, are analyzable as a combination of three meaningless yet linguistically significant categories: handshapes, locations, and movements. That is, by changing some feature of any one of those three categories, themselves meaningless, one could change the meaning of the sign . For example, by changing only the configuration of the ha...

What is language, and how is it structured?  • Language - a system for combining symbols (such as words) so that an unlimited number of meaningful statements can be made for the purpose of communicating with others.   • Grammar - the system of rules governing the structure and use a of language. • Syntax - the system of rules for combining words and phrases to form grammatically correct sentences.  • Morphemes - the smallest units of meaning within a language. – Semantics - the rules for determining the meaning of words and sentences. • Phonemes - the basic units of sound in language.  • Pragmatics - aspects of language involving the practical ways of communicating with others, or the social “niceties” of language How are language and thought related?  Language and Cognition  • Cognitive universalism – theory that concepts are universal and influence the development of language.  • Jean Piaget believed that concepts precede and aid the developm...

  One of the fundamental properties of human language is that it can be used to create an unlimited number of utterances given a limited number of pieces. At the syntactic level, this property follows directly from a mathematical property of language called recursiveness. We’re all familiar with recursiveness (even if not with the term). It is found in language , and computer programs, and even in children’s stories, as in (1). In (1), the process or rule that creates a relative clause (here, the clauses beginning with that) has applied repeatedly to the noun phrases inside other relative clauses. This repeated application of the same rule to create more and more complex sentences is an example of recursiveness. The children’s story is amusing precisely because we all know that there is no theoretical limit to the application of this rule. Any speaker of English can add to the story by generating another relative clause at the beginning, as in (2). The only limitations on th...

  Most languages have both simple words, such as teach, and complex words, such as teach+er. Knowing English entails understanding the internal structure of its complex words , as well as the ability to create and understand new complex words that exploit those same kinds of internal structures. The study of the internal structure of words is called morphology . For example, given a new verb scaff, as in The purpose of this machine is to scaff computers against viruses, we can also create or analyze the internal structure of the word scaffer and can deduce something about its meaning in the sentence, The company purchased several expensive scaffers last year. We would also immediately judge the nonce word *er+scaff to be impossible in English. Speakers of English know the form and function of the meaningful word component-er, and they know that it is a suffix rather than a prefix. Although users of a language are usually not conscious of their linguistic knowledge , their use of ...

  The study of sign language  provides a natural laboratory for isolating certain fundamental properties of human language apart from the modality in which it is transmitted. Doing so has confirmed the existence of purported language universals, such as a systematic sub-word level of structure , syntactic embedding and recursion , and particular types of complex word formation. It has also strengthened the claim that the acquisition of language by children is a natural and automatic process with a set timetable, pointing to some degree of genetic predisposition for the development of just such a system. Certain modality specific characteristics have also been found: a tendency for simultaneous layering of linguistic structure and particular types of grammatical constructions that are at once linguistic in the formal sense, and in some way iconic.