Cross-linguistic research on the development of tense-aspect marking has revealed a strong effect of lexical aspect. But the degree of this effect varies across languages. Explanation for this universal tendency and language-specific variation is still an open issue. This study investigates the early emergence and subsequent development of four…

English sentences containing the universal quantifiers "each", "every", and "all" are highly complex structures in view of the subtleties of their scope properties and resulting ambiguities. This study explored the acquisition of universal quantifier sentences as reflected in the performance of three diverse college-level student groups on a…

In six analyses using the Child Language Data Exchange System known as CHILDES, we explored whether and how parents and their 1.5- to 5-year-old children talk about writing. Parent speech might include information about the similarity between print and speech and about the difference between writing and drawing. Parents could convey similarity…

Comprehension and strategy use of 18 autistic children was compared with that of normal 3- and 4-year olds. Subjects were asked to act out certain syntactic and semantic patterns in two experiments. Autistic children performed below the levels of the normal subjects, suggesting that autism is a semantic/cognitive deficit. (PJM)

Examines the hypotheses about how print represents the speech that preliterate children select when they receive input compatible with several such hypotheses. Results indicate that most preliterate children do not select phonologically based hypotheses, but instead focus on morphophonology and/or semantic aspects of words' referents. (40…

Examines the communicative functions served by the lexical usage of normal and language impaired children whose speech was limited to single word utterances. (EKN)

Investigates the case of a 7-year-old boy with severe word-finding difficulties. The study used a series of theoretically motivated questions as a framework for psycholinguistic investigation to determine the cause of his difficulties. Findings indicated pervasive deficits in phonological processing, deficits interpreted as a developmental…

Examines the effect of adult recasting in sign language on the acquisition of specific syntactic-semantic structures by deaf children aged 9 to 76 months. Results indicated that recasting triggered the acquisition of new syntactic-semantic structures in American Sign Language and English, evident in the spontaneous production of previously…

Comparison of language-impaired two- to three-year-olds (N=10) and normal one-year-olds (N=15) matched for expressive language revealed that the language-impaired subjects acquired a greater number of object concepts presented in a no-action condition than the normal children, although language-impaired subjects' extensions of the names to new…