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National Center for Rehabilitative Auditory Research (NCRAR)


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Naomi Bramhall, Ph.D.

Telephone: 503-220-8262 x54692

Current appointments:

Research Investigator, NCRAR
Assistant Professor, Otolaryngology, Oregon Health & Science University

Research interests:

Detection of cochlear neuronal degeneration in noise-exposed Veterans, characterization of perceptual changes resulting from “hidden” hearing loss, genetics of hearing loss

Research projects (Current and recently completed):

Uncovering physiological markers of hidden hearing loss. VA RR&D, Career Development Award, 2016-2021
Noise-induced cochlear neuronal degeneration and its perceptual consequences. VA RR&D, Career Development Award, 2014-2016

Selected publications:

  • Naomi Bramhall, Dawn Konrad-Martin, Garnett McMillan (2018). Tinnitus and Auditory Perception After a History of Noise Exposure: Relationship to Auditory Brainstem Response Measures. Ear and Hearing, 39: 881-894.
  • Bramhall, N.F., Konrad-Martin, D., McMillan, G.P., Griest, S.E. (2017). Auditory Brainstem Response Altered in Humans With Noise Exposure Despite Normal Outer Hair Cell Function. Ear and Hearing, 38: e1-e12.
  • Bramhall, N., Ong, B., Ko, J., Parker, M. (2015). Speech Perception Ability in Noise is Correlated with Auditory Brainstem Response Wave I Amplitude. Journal of the American Academy of Audiology, 26: 509-17.
  • Bramhall, N., Shi, F., Arnold, K., Hochedlinger, K., Edge, A. (2014). Lgr5-positive supporting cells generate new hair cells in the postnatal cochlea. Stem Cell Reports, 2: 311-22. PMC3964281
  • Mizutari, K., Fujioka, M., Hosoya, M., Bramhall, N., Okano, H.J., Okano, H., Edge, A. (2013). Notch Inhibition Induces Cochlear Hair Cell Regeneration and Recovery of Hearing after Acoustic Trauma. Neuron, 77: 58-59. PMC3573859
  • Bramhall, N., Kallman, J., Verrall, A., Street, V. (2008). A novel WFS1 mutation in a family with dominant low frequency sensorineural hearing loss with normal VEMP and EcochG findings. BMC Medical Genetics, 9: 48. PMC2435521
  • Kallman, J., Phillips, J., Bramhall, N., Kelly, J., Street, V. (2008). In Search of the DFNA11 Myosin VIIA Low- and Mid-Frequency Auditory Genetic Modifier. Otology and Neurotology, 29: 860-867. PMC2648351
  • Street, V., Kallman, J., Strombom, P., Bramhall, N., Phillips, J. (2008). Vestibular function in families with inherited autosomal dominant hearing loss. Journal of Vestibular Research, 18:51-58. PMC2575737