Reviews psycholinguistic theories on the relationship between structure and function in language production. Criticizes the theory that sentence structures are reducible to the general forces of cognition that drive interpretation and communication. Argues that syntactic structures are necessary elements in an explanation of language use. (FMW)

Spontaneous speech samples from 10 Swedish children were analyzed grammatically. The five subjects (age five) with specific language impairment (SLI) differed from controls in their more restricted usage of word order patterns and number of grammatical errors. Their speech also showed frequent omissions of grammatical morphemes. Results suggest…

A study tested the hypothesis that spoken language has a strong direct influence on the encoding process, and that speakers of nonstandard dialects have a different set of problems with the written language and make identifiably different errors than do speakers of standard dialect. The subjects, 13 standard and 13 nonstandard dialect speakers…