One of the fundamental questions in the field of language acquisition is a learnability problem, which considers how learners acquire certain aspects of language which are not directly provided in the input or whose referents are not readily observable. This dissertation investigates Japanese children's acquisition of various linguistic phenomena,…

Sentence comprehension requires both syntactic prediction and working memory processes. Evidence suggests that both are impaired in agrammatic aphasia, and can independently contribute to comprehension breakdowns, but the relationship between them, especially during real-time sentence comprehension remains unclear. Two EEG studies investigated…

Bilinguals employ both global and local control mechanisms to manage coactivated languages that compete for selection, yet little is known about how they operate on morphosyntactic information. The current study investigated bilingual language control mechanisms for a morphosyntactic production task. Across two experiments, 48 early…

This dissertation investigates the nature of the interface between morphosyntax and cognition. My goal is to connect formal semantic theories of meaning with theories of cognition, drawing on the initial hypothesis that the interface between language and cognition is transparent. I look at different forms of adjectival comparatives -- positive and…

Interface Delay is a theory of syntactic development, which attempts to explain an array of constructions that are slow to develop, which are characterized by being sensitive to discourse-pragmatic considerations of the type associated with the natural semantic class of definites. The theory claims that neither syntax itself, nor the…

This dissertation explores how items encountered in the comprehension of language are stored in memory and subsequently accessed. Processing and comprehending language frequently requires the retrieval of items in memory so that a current linguistic element can be assigned an interpretation. For example, in a sentence such as "Miles loved his…

This study investigates how task complexity affects native speakers' and second language (L2) learners', and experts' perceptions of task difficulty in writing tasks. It also explores how task complexity influences English native speakers' and L2 learners' linguistic complexity in their writing. Ninety participants performed one simple and one…

This dissertation focuses on when and how children learn about the meanings of the propositional attitude" verbs know" and "think". "Know" and "think" both express belief. But they differ in their veridicality: "think" is non-veridical and can report a false belief; but "know" can only…

Purpose: Research in the cognitive and neural sciences has situated predictive processing--the anticipation of upcoming percepts--as a dominant function of the brain. The purpose of this article is to argue that prediction should feature more prominently in explanatory accounts of sentence processing and comprehension deficits in developmental…

Students with high reading proficiency typically achieve better results in science assessments, indicating the importance of reading proficiency. Since the process of reading is a complex interaction between properties of a text and a reader, the linguistic demands of a text might affect text comprehension. Certain linguistic features, such as…

Perception verbs and mental verbs have significant overlap in their syntax and semantics; both reference mental representations when taking embedded clauses, as in "I see that Maria was here" and "I think that Maria was here." Some have suggested that perception is more accessible for young children than mental states, raising…

This study investigates the relationship between three linguistic functions: thetics, miratives and exclamatives. Thetics are an information structure configuration that conveys that the information is new to the addressee. The thetic subtypes selected for this study are the following: existentials (e.g. "There are apples in the…

Purpose: We assessed the potential direct and indirect (mediated) influences of 4 cognitive mechanisms we believe are theoretically relevant to canonical and noncanonical sentence comprehension of school-age children with and without developmental language disorder (DLD). Method: One hundred seventeen children with DLD and 117 propensity-matched…

In this study we examined language learners' attentional processing of a target syntactic construction in written L2 input in different input conditions, the change in learners' knowledge of the targeted construction in these conditions, and the relationship between the change in knowledge and attentional processing. One hundred L2 learners of…

This longitudinal study involving 101 Dutch four- and five-year-olds charts indirect request (IR) and mental state term (MST) understanding and investigates the role that Theory of Mind (ToM) and general linguistic ability (vocabulary, syntax, and spatial language) play in this development. The results showed basic understanding of IR and MST in…