This paper constitutes a response to Lust and Mazuka's (1989) defense of the Principal Branching parameter and their critique of O'Grady, Suzuki-Wei, and Cho's (1986) experiment, which purported to show that even children learning left-branching languages exhibit a preference for forward patterns of anaphora. (Contains 16 references.) (JL)

Evaluated the development of temporal location within a cross-linguistic experimental design. The research focused on the transition from a temporal system based on absolute temporal relations involving speech time and event time to a more complex system involving relative temporal relationships and reference time. (48 references) (JL)

To test hypothesis that young children may be open to learning non-SVO structures with novel transitive verbs, 12 children in each of three age groups (2-year olds, 3-year olds, and 4-year olds) were taught novel verbs, one in each of three sentence positions: medial, final, and initial. Results suggest English-speaking children's acquisition of a…

Examines the relationship between third-person-singular subject pronoun case and agreement, focusing on the hypothesis that these two grammatical subsystems develop together. Twenty-nine children between ages 2 and 4 years of age were each audiotaped for approximately two hours playing and interacting with their primary caregivers. (Author/VWL)

Examined whether infants imitate the vocal pitch characteristics of adult caregivers and differentially adjust their vocal pitch or fundamental frequency toward that of their caregivers. Data are presented from a longitudinal case study of an infant recorded over several months, interacting with each parent. The infant did not demonstrate…

In many areas of language acquisition, researchers have suggested that semantic generality plays an important role in determining the order of acquisition of particular lexical forms. However, generality is typically confounded with the effects of input frequency and it is therefore unclear to what extent semantic generality or input frequency…

The current study attempts to differentiate effects of phonotactic probability (i.e. the likelihood of occurrence of a sound sequence), neighbourhood density (i.e. the number of phonologically similar words), word frequency, and word length on expressive vocabulary development by young children. Naturalistic conversational samples for three…

We hypothesize that the conceptual relation between a verb and its direct object can make a sentence easier ("the cat is eating some food") or harder ("the cat is eating a sock") to parse and understand. If children's limited performance systems contribute to the ungrammatical brevity of their speech, they should perform better on sentences that…

A study is described, the results of which indicate that mothers can recognize the cries of their own infants from tape-recorded cry samples with few instances of confusion, and that the sex of an unknown infant cannot be reliably identified using a simple auditory identification paradigm. (Author/RM)

Three groups of children, aged 5, 7, and 11 years, were tested in a clause-memory task, in order to investigate the role of syntactic and semantic factors in children's recall and processing of spoken continuous prose. (Author/SW)

Diary observations of two-year-olds' over-extended word use have been interpreted as arising from the word's underlying semantic feature structure. This interpretation was rejected after a study of five children. The need to construct models of early word meaning reflecting certain early language development patterns is discussed. (CHK)

The comprehension ability of 36 children at three stages of telegraphic speech was assessed using active behavioral responses to declarative and imperative sentences. A significant increase in verbal and behavioral appropriateness with age was found for imperative and declarative forms. Results are compared with Shipley, Smith and Gleitman's…

Describes two types of feedback (explicit and implicit) in the responses of four mothers to their two-year-old children and investigates whether these mothers respond differentiallly to their children's well-formed and ill-formed utterances with either type of feedback. Results demonstrate that a high proportion of maternal responses qualify as…

Examines the lexical and syntactic development of a bilingual child and the cognitive developments that coincided with the child's linguistic processes. Concludes that it is the development of self-awareness and sensitivity to standards in the second year which provides the motive for the child to avoid mixed-language utterances. (SED)

Research is reported which investigated the ability of four-month-old hearing infants to discriminate between gestures derived from American Sign Language. Findings show that infants possess the perceptual abilities to differentiate between signs that differ solely in terms of contrasts along a single underlying movement direction. (SED)