As humans, we use language with ease and speed, solving the complex computational problem of processing form and meaning seemingly without effort. This dissertation studies how the properties of language enable us to achieve this, by investigating what is computationally difficult about language, and what is easy. We first investigate the…

This dissertation investigates the interaction of developing extralinguistic cognitive systems with early language learning and processing through the case study of verb argument structure. The interaction of these systems with the linguistic system underpins fundamental theories of language learning and use: language does not exist in isolation.…

Singular "they" is becoming increasingly common and accepted, but many people find it difficult to learn, instead making seemingly-counterintuitive errors like "she uses they/them pronouns." Existing pronoun production models argue that speakers select pronouns based on morphosyntactic information associated with a name, or…

Humans are continuously making sense of the world. One way we do this is with intuitive frameworks, which are ad-hoc, informal patterns of thinking about natural and social phenomena. However, there is mixed evidence about the utility of intuitive frameworks in formal learning settings, especially in science education. Some research has shown that…

Traumatic brain injury (TBI) may result in a wide array of cognitive deficits, including executive functions. A proposal by Ferretti and colleagues (2011 & 2013) has suggested that executive dysfunction caused by traumatic brain injury (TBI) impact navigation and discourse abilities in similar ways, suggesting that these skills may share…

While information theory is typically considered in the context of modern computing and engineering, its core mathematical principles provide a potentially useful lens through which to consider human language. Like the artificial communication systems such principles were invented to describe, natural languages involve a sender and receiver, a…

Some scientists believe that speaking a second language could confer lasting cognitive advantages in aging and stave off the onset of dementia (Bialystok et al., 2007; Craik et al., 2010; Abutalebi & Rietbergen, 2014; Grant et al., 2014; Woumans et al., 2015; Klein et al., 2016; Abutalebi & Green, 2016; Smirnov et al., 2019). However, this…

This study examines the frequency effect of two-word collocations involving "para" "to," "for" (e.g. "fui para," "para que") on the reduction of "para" to "pa" (in Spanish) and "pra" (in Portuguese). Collocation frequency effects demonstrate that language speakers…

This dissertation uses the processing of anaphoric relations to probe how linguistic information is encoded in and retrieved from memory during real-time sentence comprehension. More specifically, the dissertation attempts to resolve a tension between the demands of a linguistic processor implemented in a general-purpose cognitive architecture and…

The purpose of this dissertation was to examine the relationships between working memory (WM) and three commonly used learning strategies or conditions in the nature of proficiency among adult L2 Russian learners. Based on the aptitude-learning condition interaction framework articulated by Robinson (2002b), the study identifies two types of…

This dissertation analyzes differences found in Spanish-speaking middle school and high school students in algebra-based problem solving. It identifies the accuracy differences between word problems presented in English, Spanish and numerically based problems. The study also explores accuracy differences between each subgroup of Spanish-speaking…

The purpose of the study was to gain an in-depth understanding of the emotional expression in the narration of autobiographical stories of Chinese international students in their respective languages (i.e., Mandarin and English). It addressed the methodological limitations of previous research on bilinguals' emotional expression and…