"Controlled Aspects of Language Production", Stephanie Riès

Lecture in the C-STAR series, by Stephanie Riès, PhD (San Diego State University), delivered on October 4th, 2024.
Dr. Riès' Laboratory for the Brain Dynamics of Language at UCSD: lbdl.sdsu.edu
Abstract:
Controlled Aspects of Language Production
Although producing language seems relatively easy, a number of cognitive processes are needed to transform ideas into language output. Cognitive control processes are thought to play a crucial role in helping resolve different forms of conflict throughout language production. Our research examines the brain dynamics of cognitive control processes as they interact with core language processes through the use of behavioral data, and scalp and intracranial EEG. In this talk, I will focus on how different brain regions interact to support speech monitoring processes by using graph signal processing on intracranial EEG data while individuals name pictures. Results show that prefrontal areas are functionally connected with core language regions in the left posterior temporal cortex as we are producing language and that these connections evolve dynamically relative to vocal onset. The implications of these findings in relation to cognitive models of language production and stroke-induced aphasia will be discussed.