Ambridge's proposal cannot account for the most basic observations about phonological patterns in human languages. Outside of the earliest stages of phonological production by toddlers, the phonological systems of speakers/learners exhibit internal behaviours that point to the representation and processing of inter-related units ranging in size…

The ethos behind provision of early intervention programmes to infants and young children with additional support needs has been established for some time (e.g. Right-from-the-Start), but targeting the development of typically developing infants has been a relatively recent phenomenon. Baby sign is one of the many intervention techniques…

A systematic review was conducted to synthesize the evidence related to the effectiveness of baby sign language for children with typical development. This response to a Commentary on the review stresses that the primary purpose of the review was to assist caregivers and policy makers with informed decision-making related to the benefits of the…

Stoel-Gammon (this issue) provides a welcome addition to the phonological acquisition literature, bringing together insights from long-standing and more recent research to address the relationship between the developing phonological system and the developing lexicon. A growing literature on children's early use of words across languages and…

Reviews study of toddlers' responses to specific and neutral requests for clarification, focusing on ability to locate linguistic errors that provoked clarification requests and their successes in repair. Argues that this behavior provides evidence for a speech monitor that detects errors and enables repair. Suggests that metalinguistic ability…

Describes an ethnographic study of African American toddlers and families that focused on children's productive competence in naturally occurring narrativelike conversation. Examines emergence of narrative competence; posits definition incorporating minimal requirements for child participation within the fundamental essence of narrative structure.…

Discusses measures of infants and toddlers developing vocabularies. Suggests that what is needed are norms derived from observations of typically-developing bilingual children, followed up by measures of concurrent and predictive validity. (Author/VWL)

Presents emergentist coalition theory of language development characterizing lexical acquisition as the emergent product of cognitive constraints, social-pragmatic factors, and global attentional mechanisms. Details 12 experiments with 12- to 25-month-olds using the development of reference as test case of the theory. Presents evidence that…

Describes the richness of Hollich et al.'s model of language acquisition. Presents concerns about focus on object words in word learning research, the phantom child in the model, and the missing affect in theories and research on word learning. Suggests that experimental work inspired by principles and constraints theory and observational work…

Available evidence suggests that early language intervention is effective when designed to meet the needs of the individual child. Intervention should begin when risk or predisposing factors so indicate or when significant delays are present. Intervention should respect the child's developmental level in relevant areas and should address…

The MacArthur Communicative Development Inventories (CDIs) represent a breakthrough in measuring early language production. Nevertheless, the CDIs' word comprehension component may not be a valid measure, because parents report too high a word comprehension ability for their children. Suggests that administering the CDIs to parents in an interview…

Discusses the "communication hypothesis" of problem behavior and describes methods for determining the communicative functions served by problem behavior. Reports on application of functional assessment and functional communication training with toddlers. (DB)

Presents evidence that the supposed paradox in which infants find abstract patterns in speech-like stimuli whereas even some preschoolers struggle to find abstract syntactic patterns within meaningful language is no paradox. Asserts that all research evidence shows that young children's syntactic constructions become abstract in a piecemeal…

Asserts that the posited paradox between infancy and toddlerhood language was not eliminated by Tomasello and Akhtar's appeal to infants' robust statistical learning abilities. Maintains that scrutiny of their studies supports the resolution that abstracting linguistic form is easy for infants and that toddlers find it difficult to integrate…

Discusses advances in the field of child language and three major findings in language development: (1) infant communication begins at birth; (2) warning signs of language delay are evident by age 2; and (3) the benefits of reading aloud to young children can be strengthened through parent education. (CR)