Iconic words imitate their meanings. Previous work has demonstrated that iconic words are more common in infants' early speech, and in adults' child-directed speech (e.g., Perry et al., 2015; 2018). This is consistent with the proposal that iconicity provides a benefit to word learning. Here we explored iconicity in four diverse language…

Previous studies suggest that age of acquisition affects the outcomes of learning, especially at the morphosyntactic level. Unknown is how syntactic development is affected by increased cognitive maturity and delayed language onset. The current paper studied the early syntactic development of adolescent first language learners by examining word…

The relationship between knowledge and reasoning was explored through 12 males' and 12 females' (aged 12, 15, and adult) solutions to written syllogisms containing four conjunctions, and evaluations of single sentences for their pragmatic content. The relationship between comprehension of pragmatic uncertainty and detection of uncertain…

Investigates the linguistic abilities of a subgroup of grammatical specific language impaired (SLI) children, focusing on the use of referential expressions in a narrative discourse and providing insight into the underlying nature of grammatical SLI. Findings support the hypothesized modular nature of grammatical SLI children's underlying…