Inyong Choi is an Associate Professor in the Communication Sciences and Disorders Department at the University of Iowa, supporting the AuD clinical degree program. His main interests are basic auditory-cognition research that investigates neural mechanisms normal hearing listeners use to understand speech-in-background noise and a more clinical line of research identifying neural markers and treatment options that will improve speech-in-noise processing by individuals with impaired hearing.

Research focus

Dr. Inyong Choi and the Human Auditory Neuroscience Group conduct two parallel research programs: 1) A basic auditory-cognition research line that investigates neural mechanisms normal hearing listeners use to understand speech-in-background noise and 2) a more clinical line of research where we try to identify neural markers and treatment options that will improve speech-in-noise processing by individuals with impaired hearing systems.

Current and past courses taught

• CSD:3113 Introduction to Hearing Science
• CSD:5253 Speech Perception in Listeners with Hearing Loss
• CSD:5511 Introduction to Doctoral Research
• CSD:6230 Psychoacoustics
• CSD:6290 Auditory Evoked Potentials

Selected publications / active grants

Selected papers

• Kim, S., Emory, C., Choi, I. (2021). Neurofeedback training of auditory selective attention enhances speech-in-noise perception. Frontiers in Human Neuroscience, 15, 337. https://doi.org/10.3389/fnhum.2021.676992
• Kim, S., Schwalje, A., Liu, A., Gander, P., McMurray, B., Griffiths, T., Choi, I. (2021). Pre- and post-target cortical processes predict speech-in-noise performance. Neuroimage, 228, 117699. https://doi.org/10.1016/j.neuroimage.2020.117699
• Bonnard, D., Schwalje, A., Gantz, B., Choi, I. (2018). Electric and acoustic harmonic integration predicts speech-in-noise performance in hybrid cochlear implant users. Hearing Research, 367, 223-230. https://www.sciencedirect.com/science/article/abs/pii/S0378595518300959

Active grants

• Identifying the Sources of Degraded Speech-in-Noise Understanding and Individualized Therapeutic Options, DoD-HRRP Focused Applied Research Grant W81XWH-19-1-0637
  Funded by Department of Defense. Award amount: ($1,362,586.00) Percent effort: 20. Investigator/s Inyong Choi (Principal Investigator).
• Iowa Cochlear Implant Clinical Research Center VII Project 3: Central Auditory Integration and Plasticity, P50 DC000242
  Funded by NIH-NIDCD. Percent effort: 15. Investigator/s Bruce Gantz (Principal Investigator), Timothy Griffiths (Principal Investigator), Inyong Choi (Co-Investigator).
• Iowa Cochlear Implant Clinical Research Center VII Project 4: Cognitive Mechanisms of Language Processing, P50 DC000242
  Funded by NIH-NIDCD. Percent effort: 5. Investigator/s Bob McMurray (Principal Investigator), Inyong Choi (Co-Investigator).
• Human Auditory Cortex Physiology, R01 DC004290
  Funded by NIH-NIDCD. Percent effort: 15. Investigator/s Matthew Howard (Principal Investigator), Inyong Choi (Co-Investigator).