Over time, people who spend a lot of time together (e.g., roommates) begin sounding alike. Even over the course of short conversations, interlocutors often become more acoustically similar to one another. This phenomenon -- known as phonetic alignment -- has been well studied in adult interactions, but much less is known about alignment patterns…

English-speaking children use plural morphology from around the age of 2, yet often omit the syllabic plural allomorph /-[schwa]z/ until age 5 (e.g., "bus(es)"). It is not clear if this protracted acquisition is due to articulatory difficulties, low input frequency, or fricative-final words (e.g., "bus," "nose") being…

Although children may productively use concrete nouns after limited exposure, complete mastery of adult-like patterns of noun usage can take up to 14 years. We evaluated whether a transition from universal to language-specific naming is part of the refinement in later lexical development, and we compared how this refinement plays out in…

Usage patterns for common nouns continue to change well past the early years of language acquisition in free naming (Andersen, 1975; Ameel, Malt, & Storms, 2008). The current research evaluates whether this continued evolution is shown in receptive judgments as well, given their differing cognitive demands. We found an extended learning…

This paper evaluates the proposal that general associative mechanisms underlie the earliest stages of word learning but that these same general mechanisms, operating over language input, enable children to identify domain-specific cues that ultimately help to constrain word learning, rendering children more sophisticated language users. As a…