Compares and analyzes speech samples of Mayan and American mothers addressing their infant children. Results indicate that although higher pitch has been described as a universal feature of baby talk registers worldwide, the Mayan mothers do not utilize this feature. It is suggested that pitch-raising strategies may be sociolinguistically…

Reports on a study of mothers' uses of nouns and pronouns and their references to objects and persons as environmental variables which might relate to children's nominal preferences. Findings suggest that environmental factors do contribute to stylistic differences in language acquisition and that the communicative functions of language are an…

Describes a study of spontaneous speech from two young children and their mothers to examine how children learn some of the inflectional/syntactic possibilities for individual verbs. Multiple regression analyses were used. Maternal variety of use was a highly significant predictor of the children's use of the same verbs. (Author/SED)

Describes a part of a study on children's acquisition of Warlpiri, an aboriginal language spoken in central Australia, which aimed to find out at what age the children respond consistently to particular word orders and case frames for simple transitive sentences. Makes comparisons with the acquisition of Turkish transitive clauses. (SED)

Describes a study designed to test if, when children describe actions, they consider the role an entity plays in an action, independent of the animateness of the entity. Results indicate that young children have relational intentions which are independent of animateness. (EKN)

Examines the conversation behavior of mothers toward their children with respect to two hypotheses: that the mothers' underlying interactional intent can be inferred from patterning in their conversation and that the utterances having a directive or controlling function will show a negative relationship to those designed to elicit conversation…

Examines recent attempts to explain children's word use and selection through recourse to information theory. It is concluded that information theory cannot account for the complexities involved in early word selection. (AM)

Reports on a study investigating the relationship between children's linguistic environment and language acquisition. In particular, the study examined the effect of mothers' speech on subsequent child speech. (Author/AM)

This article discusses a study designed to obtain some information regarding the nature of the awareness children have of their own articulatory activity and the level of mental development at which this awareness appears. (Author/CFM)

Reports on two experiments, one performed on infants, the other on adults, designed to examine the issue of categorical perception of speech contrasts in infants in relation to linguistic processing and the innateness theory of speech perception. (AM)

Adult expansion of child utterances can serve as a communication check and as a base for child language research. Inappropriate expansion may be corrected by the child if it changes his meaning, or may be ignored, if word order or phonetics appeared correct to the child. (CHK)

Six children were visited in their homes every 2 weeks for 18 months from the age of 6 months to observe their developing comprehension and production of words. Results showed both similarities and individual differences in patterns of early comprehension. A close relationship was noted between early production and comprehension of words;…

The phonemic inventories of 30 children (aged 3;4-5;7) with phonological delays were examined in terms of featural distinctions to address universal vs. individual accounts of acquisition. Phonetic inventories of the same children were also identified for comparison purposes. (Contains 40 references.) (JL)

Three children were observed interacting with their mothers before the onset of single words, when vocabulary consisted of 10 words, and when it consisted of 50 words. Relations between communicative functions and acoustic analysis of prosodic variables were studied. Considerable variability was found in the number of rises produced overall and…

While children aged 1;10 and 2;1 show only a modest rate of mapping novel nouns onto unfamiliar rather than familiar objects, children aged 1;4 and 1;8 show a high rate. Two studies with young 2-year olds found the noun-mapping preference prevalent, but unless initial choices are strongly reinforced, increase in salience of familiar kinds lures…