Words contain multitudes. This multiplicity of meanings raises two key questions, both of which this thesis attempts to address. First, are word meanings categorical or continuous? The results of Chapters 2-4 support a hybrid model, in which word meanings occupy a continuous state-space (Elman, 2009), which is further discretized along the…

Dyslexia is a developmental word reading and spelling disorder affecting from 6% to 17% of school-age children. Phonological processing deficits--marked by difficulties in representing or accessing the abstract units of spoken language--are widely recognized as a primary cause of reading difficulties in children with dyslexia. These impairments…

The English orthography contains many "complex words" in which relationships between orthography, phonology, morphology, and semantics are relatively opaque. Throughout school, children encounter increasingly complex words from which they are expected to make meaning. Students' ability to read these words depends on the skills they bring…

Purpose: Rhyme increases the phonological similarity of phrases individuals hear and enhances recall from working memory. This study explores whether rhyme aids word learning and examines the underlying neural mechanisms through which rhyme facilitates word learning. Method: Fifty-seven adults completed a word learning task where they were exposed…

This study involved a three-level meta-analysis on the correlations between metalinguistic awareness (i.e., orthographic, phonological, and morphological awareness) and Chinese word reading. Based on 16,823 individuals from 81 studies, the results revealed moderate associations between all three metalinguistic skills and Chinese word reading.…

How do infants learn about the formal properties of language using only cues they can access in speech? And what intuitions do they bring to the learning problem? Chapter 2: To explore whether current notions of statistically-based language learning could successfully scale to infants' linguistic experiences "in the wild", we implemented…

Iconicity refers to a resemblance between word form and meaning. Previous work has shown that iconic words are learned earlier and processed faster. Here, we examined whether iconic words are recognized better on a recognition memory task. We also manipulated the level at which items were encoded--with a focus on either their meaning or their…

Purpose: ParAlg (Paraphasia Algorithms) is a software that automatically categorizes a person with aphasia's naming error (paraphasia) in relation to its intended target on a picture-naming test. These classifications (based on lexicality as well as semantic, phonological, and morphological similarity to the target) are important for…

This study examined the influence of linguistic input on the development of productive and receptive skills across three fundamental language domains: lexico-semantics, syntax, and phonology. Seventy-one (35 female) Basque-Spanish bilingual children were assessed at three time points (Fall 2018, Summer 2019, Winter 2021), between 4 and 6 years of…

Classrooms with multilingual students are rich spaces for enacting linguistically sustaining practices that encourage students to use all their language resources. When teachers have some knowledge of their students' home languages, they can facilitate making connections across languages which strengthens students' language development. In this…

Purpose: This study used structural equation modeling to investigate the dimensionality of language in Spanish-English bilingual kindergartners. Five theoretical models were compared, including (a) a unidimensional model; (b) a two-dimensional model by language (Spanish, English); (c) a three-dimensional model by domain of language (phonology,…

This study aims to investigate the perception of phonological, grammatical, and semantic structures by 8 children (age range: 8;2-9;5) with developmental language disorders (DLD). Another 8 age-matched (age range: 8;4-10;0) typically developing (TD) children served as controls. The results demonstrated that children with DLD had lower performance…

Previous studies showed that word learning is affected by children's existing knowledge. For instance, knowledge of semantic category aids word learning, whereas a dense phonological neighbourhood impedes learning of similar-sounding words. Here, we examined to what extent children associate similar-sounding words (e.g., rat and cat) with objects…

Vocabulary is an important foundation for reading skills. Dual-route cascaded model believes that when form-sound correspondence is irregular, phonetic decoding is a necessary but not sufficient condition for word acquisition. Lexical access in syllabic scripts involves a morphological-phonetic-semantic approach, where phonological decoding is…

This study traced different types of distractor effects in the picture-word interference (PWI) task across repeated naming. Starting point was a PWI study by Kurtz et al. (2018). It reported that naming a picture (e.g., of a duck) was slowed down by a distractor word phonologically related to an alternative picture name from a different taxonomic…