Welcome to the Psycholinguistics, Aphasia, and Neuromodulation Lab in the Department of Communicative Sciences and Disorders, directed by Dr. Adam Buchwald. Our research explores the cognitive and neural mechanisms that underlie speech production and perception, as well as the production of written language. Most research in the lab examines the performance of individuals with acquired speech and language impairment (e.g., aphasia, dysgraphia, apraxia of speech) to gain a deeper understanding of both normal cognitive processing as well as the behavioral manifestation of impairment subsequent to brain damage. In addition, we explore the use of neuromodulation — particularly transcranial direct current stimulation (tDCS) — to learn about the neurocognitive underpinnings of speech and language production and to foster rehabilitation.

In each domain of inquiry, the research in the lab is at the intersection of theoretical and applied interests, and we are particularly interested in “interface” issues, including:

• the relationship between phonological processing and motor planning in healthy and impaired speakers

• the relationship between orthographic and phonological processing in aphasia

• the relationship between impaired and unimpaired language processing

• the relationship between speech production and speech perception