15-month-olds behave as if they comprehend filler-gap dependencies such as "wh"-questions and relative clauses. On one hypothesis, this success does not reflect adult-like representations but rather a "gap-driven" interpretation heuristic based on verb knowledge. Infants who know that "feed" is transitive may notice…

This article investigates infant comprehension of filler-gap dependencies. Three experiments probe 15- and 20-month-olds' comprehension of two filler-gap dependencies: "wh"-questions and relative clauses. Experiment 1 shows that both age groups appear to comprehend "wh"-questions. Experiment 2 shows that only the younger…

The study investigated the ability of 10-month-old infants, from monolingual English speaking environments, to categorize comforting and approving infant-directed speech (IDS) utterances across languages. Infants participated in an infant-controlled habituation procedure, in which they heard up to 12 different exemplars, in 12 different languages,…