Si On Yoon, Ph.D. is an assistant professor in the Department of Communication Sciences and Disorders at the University of Iowa and runs the Communication, Memory, and Mind (CoMM) laboratory. She received a Ph.D. in Psychology from University of Illinois at Urbana-Champaign in 2016. Her research interests take a cognitive science approach to the study of complex language processes. She examines how people use social-pragmatic information in conversation, such as how speakers design what they say depending on their partner’s knowledge, and how previously-discussed information influences language production and comprehension in the moment. Yoon is also interested in how this ability to use social-pragmatic cues during language processing develops and how this ability varies across populations (e.g., individuals with severe memory impairment, adults who stutter). A theme throughout her work is understanding the cognitive mechanisms of natural conversation and the role of the memory representations that support natural language use.