The goal of this dissertation was to find converging evidence from behavioral and neuroimaging analyses of the mechanisms of orthographic integration with general language processes. By examining orthography effects, covert influences of orthography on non-written tasks, in participants with aphasia, we attempt to elucidate the nature of…

Purpose: The current study aimed to investigate the behavioral and electrophysiological patterns of the sentence superiority effect (SSE) in sentence repetition in monolingual adults with typical language development. The ultimate goal of this study is to establish the foundation for future studies of SSE in sentence repetition in individuals with…

Evidence from neuropsychological studies of individuals with brain damage post-stroke has supported the separation of working memory (WM) capacities for semantic (word meaning) and phonological (speech sound) information. These separate capacities have been shown to play different roles in supporting multiword language production, with semantic WM…

Traumatic brain injuries (TBIs) are heterogeneous in nature and commonly result in deficits to multiple areas of cognition including memory, linguistic processing, and executive functioning. For individuals with TBI, returning to everyday activities can be a challenge with their quality of life reduced by a variety of impairments including…

Nonword repetition (NWR) tasks represent one assessment tool for Specific Language Impairment (SLI). The use of such tasks has been established and verified for monolingual children. However, the diagnostic accuracy of NWR tasks for bilingual children has had variable results and must address several unique characteristics of this population. Gaps…

Children with limited oral language due to developmental and language delays have difficulty with communication in their everyday lives. Their trouble with speech and/or language impacts their ability to socialize with peers and learn in the school setting. Most of the research on alternative and augmentative communication systems and oral…

Sentence imitation effectively discriminates between adults with and without specific language impairment (SLI). Little is known, however, about the factors that result in performance differences. This study evaluated the effects of working memory, processing speed, and argument status on sentence imitation. Working memory was measured by both a…

In three experiments I sought to experimentally test a source of emergent relations defined as transitivity by Stimulus Equivalence theory or as combinatorial entailment in Relational Frame Theory. In Experiment I, the participants were 4 children diagnosed with autism who also demonstrated significant cognitive and language delays, who were…

This dissertation will focus on the processing and learning of abstract, phrasal argument structure constructions. Chapter 1 provides the theoretical framework for abstract constructions, and illustrates the importance of such representations in speakers' linguistic knowledge. Chapter 2 reviews the evidence for meaning being associated with…

This project examines spoken language comprehension in Broca's aphasia, a non-fluent language disorder acquired subsequent to stroke. Broca's aphasics demonstrate impaired comprehension for complex sentence constructions. To account for this deficit, one current processing theory claims that Broca's patients retain intrinsic linguistic knowledge,…