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National Center for Rehabilitative Auditory Research (NCRAR)


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Frederick (Erick) J. Gallun, Ph.D.

Phone: 503-220-8262 ext. 57472

Current Appointments

  • Research Investigator
  • Associate Professor, Dept. Otolaryngology/Head & Neck Surgery and Neuroscience Graduate Program, Oregon Health and Science University

Research Interests

  • Exploring the potential impacts of age, hearing loss, and brain injury on the ability of listeners to extract information from complex auditory stimuli.
  • Development of portable, automated, rapid tests of auditory function based on current models of the processing associated with the central auditory system.

Current Research Projects

“Predicting the benefits of spatial and spectrotemporal cues”
Principal Investigator: Frederick J. Gallun, PhD
National Institutes of Health, NIDCD, R01 2012-2017.

“Central Auditory Processing deficits associated with blast exposure”
Principal Investigator: Frederick J. Gallun, PhD
Co-Principal Investigator: Marjorie R. Leek, PhD
VA RR&D Merit Award 2011-2015.

"Perception of dynamic acoustic signals by hearing impaired listeners"
Principal Investigator: Michelle Molis, PhD
Co-Investigators: Frederick Gallun, PhD and Marjorie Leek, PhD
National Institutes of Health, NIDCD, R01 2013-2018.

"Spectral dynamics and speech understanding by hearing impaired People"
Principal Investigator: Michelle Molis, PhD
Co-Investigators: Frederick Gallun, PhD and Marjorie Leek, PhD
VA RR&D Merit Award 2013-2016.

"Blast exposed Veterans with auditory complaints"
Principal Investigator: Sheila Pratt, PhD
Co-Principal Investigators: Lindsey Jorgensen, PhD; Frederick Gallun, PhD
VA RR&D Merit Award 2015-2019.


Elected Fellow of the Acoustical Society of America

Selected Recent Publications

Gallun, F.J., Lewis, M.S., Folmer, R.L., Hutter, M., Papesh, M.A., Belding, H., Leek, M.R. (in press) “Chronic effects of exposure to high-intensity blasts: Results on tests of Central Auditory Processing” Journal of Rehabilitation Research and Development.

Reinhart, P.N., Souza, P.E., Srinivasan, N.K., Gallun, F.J. (in press) “Effects of reverberation and compression on consonant identification in individuals with hearing impairment” Ear and Hearing.

Best, V., Mason, C.R., Swaminathan, J., Kidd, Jr., G., Jakien, K., Kampel, S., Gallun, F.J., Buchholz, J., Glyde, H. (in press) “On the contribution of target audibility to performance in spatialized speech mixtures” Proceedings of the International Symposium on Hearing (edited)

Hoover, E.C., Souza, P.E., Gallun, F.J. (2015) “Competing Views on Abnormal Auditory Results After Mild Traumatic Brain Injury” SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics. 19:12-21.

Souza, P., Wright, R., Blackburn, M., Tatman, R., Gallun, F. (2015). "Individual sensitivity to spectral and temporal cues in listeners with hearing impairment." Journal of Speech Language and Hearing Research. 58(2):520-34.

Molis, M. R., Kampel, S. D., McMillan, G. P., Gallun, F. J., Dann, S. M., Konrad-Martin, D. (2015). "Effects of hearing and aging on sentence-level time-gated word recognition". Journal of Speech Language and Hearing Research. 58(2):481-96.

Ellingson, R. M., Gallun, F. J., Bock, G. (2015). "Measurement with verification of stationary signals and noise in extremely quiet environments – measuring below the noise floor." Journal of the Acoustical Society of America. 137(3):1164-1179.

Jakien, K.M., Gallun, F.J. (2015) “Evaluating Central Auditory Processing: The (Sound) Wave of the Future?” Canadian Audiologist. 2(2).

Papesh, M.A and Gallun, F.J. (2015) “Auditory impacts of blast exposure” Pathways, edited by F. Musiek.

Gallun, F.J., McMillan, G.P., Molis, M.R., Kampel, S.D., Dann, S.M., Konrad-Martin, D. (2014) “Relating age and hearing loss to monaural, bilateral, and binaural temporal sensitivity” Frontiers in Neuroscience. 8:172.

Gallun, F.J., Diedesch, A.C., Kampel, S.D., Jakien, K.M. (2013). “Independent impacts of age and hearing loss on spatial release in a complex auditory environment” Frontiers in Neuroscience. 7:252. doi:

Gallun, F.J., Diedesch, A.C., Kubli, L., Walden, T., Folmer, R.L., Lewis, M.S., McDermott, D.J., Fausti, S., Leek, M.R. (2012). “Performance on tests of central auditory processing by individuals exposed to high-intensity blasts” Journal of Rehabilitation Research and Development. 49(7), 1005-1024.

Gallun, F.J., Diedesch, A.C., Beasley, R. (2012). “Impacts of age on memory for auditory intensity” Journal of the Acoustical Society of America.132(2): 944-956.

Stecker, G.C., Gallun, F.J. (2012) “Binaural hearing, sound localization, and spatial hearing” in Translational Perspectives in Auditory Neuroscience: Normal Aspects of Hearing, edited by K. Tremblay and R. Burkhardt. Plural Publishing, Inc., San Diego.

Selected Recent Invited Presentations

Gallun, F. J. (2015). Assessing auditory processing abilities in blast-exposed Veterans. AudiologyOnline.

Gallun, F.J. (2015) “Assessing binaural benefit in older listeners” 6th Aging and Speech Communication Research Conference, Bloomington, Indiana.

Gallun, F. J. (2015). “Validating auditory complaints of blast-exposed Veterans” VA State of the Art Workshop on Traumatic Brain Injury 2015, Washington, DC

Gallun, F.J. (2015) “Learning from nature’s experiments: What clinical research can mean for sensory scientists”, 2nd Annual Workshop on Cognitive Neuroscience of Auditory and Cross-modal Perception, P.J. Šafárik University, Košice, Slovakia

Gallun, F. J. (2015). “Current Research on Central Auditory Function at the NCRAR”, American Auditory Society. Scottsdale, AZ.

Gallun, F.J. (2014) “Assessing the impacts of age, hearing loss, and brain injury on Central Auditory Function” Canadian Academy of Audiology Annual Conference, Whistler, BC, Canada

Gallun, F.J. (2014) “Central Auditory Processing following blast exposure in a Veteran population: Behavioral and electrophysiological evidence”, 32nd Annual Symposium of the National Neurotrauma Society, San Francisco, CA

Gallun, F.J. (2014) “Evidence for impacts of blast exposure on central auditory function” University College London Ear Institute, London, UK

For additional information on research, presentations and publications see: Complete CV