The current experiments address several concerns, both empirical and theoretical in nature, that have surfaced within the verb learning literature. They begin to reconcile what, until now, has been a large and largely unexplained gap between infants' well-documented ability to acquire verbs in the natural course of their lives and their rather…

Investigated whether infants can construe the same set of objects as an object category or as embodying an object property. Results of 2 experiments involving 48 and 64 14-month-olds respectively suggest that infants have begun to distinguish nouns from adjectives, they expect different grammatical forms to highlight different aspects, and that…