The concept of an output-driven map formally characterizes an intuitive notion about phonology: that disparities between the input and the output are introduced only to the extent necessary to satisfy restrictions on outputs. When all of the grammars definable in a phonological system are output-driven, the implied structure provides significant…

Age of acquisition (AoA) refers to the age at which people learn a particular item and the AoA effect refers to the phenomenon that early-acquired items are processed more quickly and accurately than those acquired later. Over several decades, the AoA effect has been investigated using neuroscientific, behavioral, corpus and computational…

Child language data are notoriously noisy. Children may produce several phonetic variants for a given word or use the same forms for several different words. As such, child data are characterized by little apparent systematicity. Competing theories have arisen to account for a range of problematic phenomena, but each has struggled to relate child…

Over the past several decades, researchers have discovered a great deal of information about the processes underlying language acquisition. From as early as they can be studied, infants are sensitive to the nuances of native-language sound structure. Similarly, infants are attuned to the visual and conceptual structure of their environments…

In 3 experiments, 9-month-old infants' expectations for what distinct count noun labels refer to were investigated. In Experiment 1, a box was opened to reveal 2 objects inside during familiarization: either 2 identical objects or 2 different objects. Test trials followed the same procedure, except before the box was opened, the contents were…

This paper presents a discussion of the constraints imposed on lexicalisation during production by language-specific patterns, such as whether words exist in a language to describe a given event and whether language-specific syntactic and phonological information correlates with semantic properties. First, we introduce in broad strokes relevant…

A discussion of English native-language vocabulary acquisition in children takes a closer look at the assumption that vocabulary is learned by common association of word with event, focusing on the acquisition of verb meanings. The intuitive power of the view that words are learned by noticing real-world contingencies for their use is…

Many authors have argued that word-learning constraints help guide a word-learner's hypotheses as to the meaning of a newly heard word. One such class of constraints derives from the observation that word-learners of all ages prefer to map novel labels to novel objects in situations of referential ambiguity. In this paper I use eye-tracking to…