Uncertainty was researched as a perceptual structure which mediates the transition from sensorimotor activity to language. The guiding notions are that the attentional system is geared to uncertainty from the beginning of life and that a speaker's language use is coordinated with this system as it emerges. (Author)

Examined effects of direct intervention on language learning. Using a toy manipulation task, 18 children aged 3;6 to 4;6 were systematically taught linguistic structures beyond their developmental grasp. Solid improvement was found in the experimental conditions; no significant improvement was noted in control conditions, showing that the language…

In three experiments, a multiple habituation paradigm was used to examine the ability of 7- and 9-month-old prelinguistic infants to form a natural, basic-level object category. Findings constitute independent evidence for the existence of a linguistically relevant nonlinguistic category prior to the onset of word comprehension. (SED)

Investigates in an experimental setting the claim that young children have some knowledge of the rules of correspondence between language and reality which are central to propositional logic. (EKN)

The relationship of object permanence and classification skills to receptive and expressive language development was investigated in infants. Object permanence, classification, and parent-child verbal interaction ratings were about equally related to language comprehension functioning, while permanence was more strongly related to language…

Results of three investigations of the development of word definitions indicated that younger childrens' definitions, including use or lack of use of superordinate categorical terms, fell short of adult informativeness, while, by age 10, children generally met such criteria in their definitions. (Author/CB)

A cross-sectional and a longitudinal study of two-year-old children was performed to investigate the developmental relationship between understanding differences in spatial point of view and correct comprehension and production of I/you pronouns. Results suggest that understanding spatial points of view is a cognitive prerequisite to understanding…

Discusses results of study that attempted to determine whether subject-auxiliary inversion occurs in yes-no questions before wh-questions and whether noninversion errors are characteristic feature of acquisition of wh-questions. Findings do not support previous claims that inversion is acquired in yes-no questions before wh-questions. Rather,…

Discusses the audio and video-recorded longitudinal data from six infants with varying degrees of vision. The findings indicate that there are basic differences in early language, which appear to reflect differences in cognitive development. (SL)

Examines the development of children's knowledge about the presuppositions of cognitive verbs that take sentential complements. Results indicate that the presuppositions of the factives "know,""forget," and "remember" and the nonfactive "think" are not learned until age four. "Believe," which has factive and nonfactive properties, is mastered…

This article discusses a study designed to determine the order of acquisition of the two expressions "in front of" and "behind," using two featureless objects. (CFM)

Four children were videotaped playing with their mothers, first in a situation with gestures, and then in a situation without gestures. Results showed that maternal gestures have more of a role in maintaining attention and flow of interaction for young children than they do in providing specific cues to the grammar the child is acquiring. (SL)

The written compositions of 11-year-olds in Great Britain's National Child Development Study were analyzed using the T-unit length as a measure of syntactic maturity and composition length as a measure of productivity. Results are discussed in relation to cognitive and linguistic development. (Author/RM)

Describes an experiment to see whether the words "front" and "back" introduce the concept of "front-back" or whether the concept preceded the words. Results show that (1) a complex disjunctive concept of "front-back" orientation precedes any knowledge of the words; (2) linguistically, "back" is comprehended before "front"; and (3) children at an…

Describes a study in which children are asked to choose the most probable or permissible of two modal propositions, a technique which assesses the children's appreciation of relative force. Results indicate that the general acquisition rule was: the greater the difference in the strength of the two modal propositions, the earlier the difference…