A surprising comprehension-production asymmetry in subject-verb (SV) agreement acquisition has been suggested in the literature, and recent research indicates that task-specific as well as language-specific features may contribute to this apparent asymmetry across languages. The present study investigates when during development children acquiring…

There is considerable controversy over the factors that shape infants' developing knowledge of grammar. Work with artificial languages suggests that infants' ability to track statistical regularities within the speech they hear could, in principle, support grammatical development. However, little work has tested whether infants' performance on…

Studies investigating the development of tense/aspect in children with developmental disorders have focused on production frequency and/or relied on short spontaneous speech samples. How children with developmental disorders use future forms/constructions is also unknown. The current study expands this literature by examining frequency,…

This study examined on-line processing of Swedish sentences in a grammaticality-judgement experiment within the framework of the Competition Model. Three age groups from 6 to 11 and an adult group were asked to detect grammatical violations as quickly as possible. Three factors concerning cue cost were studied: violation position (early vs. late),…

This study measured longitudinal change in six parameters of infant utterances (i.e. number of sounds, CV syllables, supraglottal consonants, and repetitions per utterance, temporal duration, and seconds per sound), investigated previously unexplored characteristics of repetition (i.e. number of vowel and CV syllable repetitions per utterance) and…

Parent report instruments adapted from the MacArthur-Bates Communicative Development Inventories (CDI) examined vocabulary development in children aged 0 ; 8 to 2 ; 6 for two Chinese languages, Mandarin (n = 1694) and Cantonese (n = 1625). Parental reports suggested higher overall scores for Mandarin- than for Cantonese-speaking children from…

Investigated young children's learning of the correct use of first and second person pronouns, using feed-forward neural networks. The study involved four computer simulations using the cascade-correlation (CC) learning algorithm. Results indicated that the CC networks could produce the correct pronouns without errors if children heard pronouns…

Discusses Rispoli's data on a model of pronoun case errors in child English, arguing that his claim that overextensions of he and him are antagonistic is inaccurate and his explanation for why her subjects are more frequent than other errors is insufficient. Discusses an account in terms of relative input frequencies, suggesting the fundamental…

This paper reviews evidence for and against imitation as a factor in the acquisition of syntax. It is concluded that the effects of imitation of children's speech are too pervasive to be dismissed as irrelevant. An important question is how a child extracts grammatical information from imitated sequences. (CHK)

Two nonce-word studies examined German-speaking children's productivity with the "Perfekt" (present perfect) from 2;6 to 3;6. The German "Perfekt" consists of the past participle of the main verb and an inflected form of an auxiliary (either "haben" "have" or "sein" "be"). In Study 1, nonce verbs were either introduced in the infinitival form, and…

Describes a study to determine: (1) the relationship between age and mean length of utterance measured in morphemes (MLU) in a group of normally developing two- and three-year-old chidren; (2) the standard error of MLU; (3) the relationship between MLU and age; and, (4) the ability of MLU to predict children's grammatical development. (SED)

Investigated whether children age 2; age 0-2; and 2 years used grammatical and caregiver cues in sentence comprehension and how different types of cues interacted. Children listened to sentences and identified pictures. Results indicated that children used caregiver cues (e.g., short length and position of key words) in sentence comprehension.…

Two studies explored the relationship between young children's pragmatic skills and their grammatical development. The studies involved videotaping children with and without autism interacting with their parents at age 1;2 and 2;7. In both studies, pragmatic accomplishments of mutual attention, as well as mother's conversational style, explained…

Examined cross-linguistic similarities and differences in early lexical and grammatical development among English- and Italian-speaking preschoolers. Parents completed surveys on vocabulary size, vocabulary composition, and grammatical complexity. No cross-linguistic differences surfaced in the composition of vocabulary in this age range. There…

Investigated whether the rate and patterns of pronoun case error were influenced by the composition of an individual pronoun's paradigm. Twenty-nine children ages 2;6 to 4;0 years were audiotaped interacting with their primary caregivers in various settings. Results indicated that 27 children produced case errors. The composition of a pronoun's…