Monday, June 11, 2007

Models of Language Development

I. Social Interactionism Theory
o Concentrated on the underlying reasons or social/communicative functions of language (language function is critical to the development of language)
o Speech acts are an intentional verbally encoded message

II. Elements of a speech act
o Propositional force
- Contains the actual meaning (e.g. "thats noisy" means "thats
o Illocutionary force
- The speaker's intentions (e.g. "thats noisy" speakers
intention is to get the volume turned down)
o Halliday studied the speech acts of children and developed a speech taxonomy which described early function utterances (a child's language is composed of an instrumental, interactive, personal, informative, imaginative, heuristic and regulatory function)
o Dore studied single word utterances and developed a speech act taxonomy that described a child's single word utterances (children use words to label, repeat, answer, request action, request answer, call, greet, protest and practice).

III. Contributions of Cognitive Theory
o Theory emphasizes language use (pragmatics)
o Theory stresses mother/infant interactions

IV. Limitations of Cognitive Theory
o Does not explain how children acquire language