We are generally interested in hearing, hearing loss, and hearing healthcare. One major focus of our work is in understanding the physiology and biophysics related to sounds created in the inner ear (otoacoustic emissions). We record these sounds using small microphones placed in the ear and attempt to understand the workings of the inner ear by analyzing them in various ways. We are also keenly interested in using these sounds to detect malfunction of the ear at the earliest. A second major focus is on hearing healthcare delivery. Here we are interested in understanding why so few people seek hearing health care. Once we identify barriers to access, we attempt to devise tools and methods to remove these barriers, thereby improving the affordability and accessibility of hearing health care.
Cochlear Mechanics and OAEs
- Glavin, CC, Siegel, J, Dhar, S(2021)Distortion Product Otoacoustic Emission (DPOAE) Growth in Aging Ears with Clinically Normal Behavioral Thresholds. J Assoc Res Otolaryngol :.
- Cornwell, T et al.(2020)Walking With Ears: Altered Auditory Feedback Impacts Gait Step Length in Older Adults. Front Sports Act Living 2 :38.
- Hunter, LL et al.(2020)Extended high frequency hearing and speech perception implications in adults and children. Hear Res 397 :107922.
- Klyn, NAM, Letendre, C, Shrestha, N, Lambert, BL, Dhar, S(2021)Interpretability of the audiogram by audiologists and physician non-specialists. Int J Audiol 60 (2):133-139.
- Klyn, NAM et al.CEDRA: A Tool to Help Consumers Assess Risk for Ear Disease. Ear Hear 40 (6):1261-1266.
- Kleindienst, SJ et al.(2018)Errors in Items and Algorithm in Questionnaire Used in Validation Study. JAMA Otolaryngol Head Neck Surg 144 (5):462.
- Klyn, NAM et al.A Retrospective Estimate of Ear Disease Detection Using the "Red Flags" in a Clinical Sample. Ear Hear 39 (5):1035-1038.
- Kleindienst, SJ et al.(2017)Development and Initial Validation of a Consumer Questionnaire to Predict the Presence of Ear Disease. JAMA Otolaryngol Head Neck Surg 143 (10):983-989.
- Kleindienst, SJ et al.(2016)Identifying and Prioritizing Diseases Important for Detection in Adult Hearing Health Care. Am J Audiol 25 (3):224-31.
- Guo, H et al.(2019)Disruptive mutations in TANC2 define a neurodevelopmental syndrome associated with psychiatric disorders. Nat Commun 10 (1):4679.
- Zhao, W, Dewey, JB, Boothalingam, S, Dhar, S(2015)Efferent Modulation of Stimulus Frequency Otoacoustic Emission Fine Structure. Front Syst Neurosci 9 :168.
- Zhao, W, Dhar, S(2012)Frequency tuning of the contralateral medial olivocochlear reflex in humans. J Neurophysiol 108 (1):25-30.
Sumitrajit (Sumit) DharPrincipal Troublemaker
Sumit’s scientific interests include otoacoustic emissions, cochlear mechanics, and hearing health care.
Mary MeskanAssistant Instigator
Mary is an audiologist with clinical and research experience. Her interests include improving access to hearing healthcare.
Jasleen SinghPostdoctoral Fellow
Uzma Shaheen WilsonPhD Candidate
Uzma is a clinically trained audiologist. Her interests are in the mechanisms of otoacoustic emissions and their connection to cochlear mechanics.
Courtney Coburn GlavinPhD Student
Courtney is a clinically trained audiologist. She is interested in using otoacoustic emissions to better understand how the ear changes with age and in response to environmental insults.
Alexandra BrocknerPhD Student
Alexandra is a clinically trained audiologist. Her interests include evaluating the tools used to measure hearing aid use and developing behavior-based interventions for promoting hearing aid use in adults.
48 million (20%) of Americans report some degree of hearing loss