Research Scientist, Department of Otolaryngology- Head and Neck Surgery
Audiologist, Department of Otolaryngology- Head and Neck Surgery
BS: Wright State University, Business Management, 2006-2009
AuD: The University of Akron and the Northeast Ohio AuD Consortium, Audiology, 2009-2013
Fellow: Evokes Inc., Neurophysiologic Intraoperative Monitoring- 2014
PhD- Pre-Candidacy: The Ohio State University, Auditory Physiology - 2018
- Electrophysiologic biomarkers of hearing loss
- Auditory Neuropathy Spectrum Disorder
- Cochlear implants and performance outcomes
- Electrophysiology of human sensory systems
Cochlear implantation during vestibular schwannoma removal and labyrinthectomy for treatment of meniere’s disease
This study is designed to use both psychophysical and electrophysiological measures to evaluate temporal encoding and processing at both the peripheral and the central levels of the auditory system in adult cochlear implant users. The long-term goal of this research is to better understand the neurophysiologic basis of speech perception deficits in older (≥ 65 years) CI users. This investigation is being led by Dr. Shuman He and is currently funded by the NIDCD.
Current Research Support
PI: Shuman He, MD, PhD
Dates: 7/1/2017- 6/30/2022
Name of agency: NIDCD and NIGMS, R01
Role: Research Scientist/Audiologist
Award number if applicable: DC016038: $1,549,944
Koka K, Riggs WJ, Dwyer R, Holder JT, Noble JH, Dawant BM, Ortmann A, Valenzuela CV, Mattingly JK, Harris MM, O'Connell BP, Litvak LM, Adunka OF, Buchman CA, Labadie RF. Intra-cochlear electrocochleography during cochlear implant electrode insertion is predictive of final scalar location. Otology and Neurotology. 2018 Sep;39(8):e654-e659.
Riggs WJ, Roche JP, Giardina CK, Harris MS, Bastian ZJ, Fontenot TE, Buchman CA, Brown KD, Adunka OF, Fitzpatrick DC. Intraoperative electrocochleographic characteristics of auditory neuropathy spectrum disorder. Frontiers in Neuroscience. 11:416. doi: 10.3389/fnins.2017.00416
Harris MS, Riggs WJ, Giardina CK, O’Connell BP, Holder J, Koka K, Wanna GB, Labadie RF Fitzpatrick DC, Adunka OF. Patterns seen during electrode insertion using intracochlear electrocochleography obtained directly through a cochlear implant. Otology and Neurotology 2017;38(10): 1415-1420.
Riggs WJ, Harris MS, Adunka OF. Neurophysiologic monitoring in otologic and neurotologic surgery. In Glasscock-Shambaugh Surgery of the Ear, 7th edition (eds. David S. Haynes, Matthew L. Carlson, D. Bradley Welling and Lloyd Minor), People’s Medical Publishing House, Raleigh, NC, 2017.
Harris MS, Riggs WJ, Koka K, Litvak LM, Malhotra P, Moberly AC, O’Connell BP, Holder J, DiLella FA, Boccio CM, Wanna GB, Labadie RF, Adunka OF. Realtime intracochlear electrocochleography obtained directly through a cochlear implant. Otology and Neurotology 2017;38(6):e107-e113.
Riggs WJ, Harris MS, Adunka OF, Moberly AC. Intraoperative electrocochleography: a window into endolymphatic hydrops in a patient with an endolymphatic sac tumor. Otology and Neurotology 2017; 38(4):547-550.
Electroneurodiagnostic Technology Program
Sinclair Community College, Dayton, OH
Awards and Honors
Kenneth W. Berger, PhD Memorial Award, Best Research Manuscript, Northeast Ohio AuD Consortium, 2011