This study, involving 32 adult speakers of Dutch, strengthens the covert repair hypothesis of disfluency. It found that emphasis on speech accuracy causes lower speech error rates but does not affect disfluency and self-repair rates, noise masking reduces disfluency and self-repair rates but does not affect speech error numbers, and internal…

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)

This study investigated developmental patterns of acquisition of the unrounded U.S. English vowels, by following 6 normally developing children from 22 to 30 months of age. Three classes of production errors were identified: intertrial production variability, context-sensitive substitutions, and context-free systematic substitution patterns.…

Twelve learning-disabled children, aged 8-11, were compared with normal peers on various discourse errors. No significant quantitative differences were found in the total number of discourse errors between the disabled and normal groups, but the errors were qualitatively different. Male subjects made significantly more errors than female subjects.…