Robert V Shannon
Adjunct Professor, USC Biomedical Engineering
Scientist III and Head, Department of Auditory Implants and Perception, House Ear Institute
Research Topics
- Cochlear Implants
- Auditroy Brainstem Implants
- Auditory Midbrain Implants
- Pyshophysics of normal and impaired hearing
- Speech perception with degraded sensory information
Research Overview
I am interested in how auditory information is coded in the nervous system. My original research attempted to find common elements in physiological responses and perception of acoustic sound. Since 1977 my research has focused primarily on prosthetic electrical stimulation to restore hearing: cochlear implants, brainstem implants and midbrain implants. My research programs range from the biophysics and psychophysics of electrical stimulation of the auditory system, to speech pattern recognition and the design of signal processing for prosthetic devices. Research on auditory prostheses spans the fields of biomedical engineering, anatomy, physiology, psychophysics, perceptual object formation and pattern recognition. Artificial activation of a sensory system at different levels of processing can reveal the importance of various cues to auditory perception. The comparison of simple and complex perception between normal hearing and prosthetic activation of the cochlea, auditory brainstem and auditory midbrain gives insights into processing, storage and retrieval of auditory information in the nervous system.Contact Information
- Web Sites:
- House Ear Institute
USC Biomedical Engineering - E-mail:
- shannon@hei.org
- Mailing Address:
- Department of Auditory Implants and Peception
House Ear Institute
2100 W. Third St.
Los Angeles, CA 90057 - Office Phone:
- (213) 353-7020
- Fax:
- (213) 413-0950
Education
- 1971 University of Iowa BA Psychology and Mathematics
- 1975 UC San Diego PhD Psychology
- 1977 UC Irvine Postdoc Psychobiology
Research Images
Selected Publications
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Schwartz MS, Otto SR, Shannon RV, Hitselberger WE, Brackmann DE. (2008) Auditory brainstem implants. Neurotherapeutics. 5(1):128-36 -PubMed
Colletti V, Shannon RV, Carner M, et al. (2007) The first successful case of hearing produced by electrical stimulation of the human midbrain. Otology and Neurotology. (1):39-43. -PubMed
Baskent D, Shannon RV. (2006) Frequency transposition around dead regions simulated with a noiseband vocoder. J Acoust Soc Am. 119(2):1156-63. -PubMed
Stickney GS, Loizou PC, Mishra LN, Assmann PF, Shannon RV, Opie JM. (2006) Effects of electrode design and configuration on channel interactions. Hear Res. 211(1-2):33-45. -PubMed
Chatterjee M, Galvin JJ 3rd, Fu QJ, Shannon RV. (2006) Effects of stimulation mode, level and location on forward-masked excitation patterns in cochlear implant patients. J Assoc Res Otolaryngol. 7(1):15-25. -PubMed
Colletti V, Shannon RV. (2005) Open set speech perception with auditory brainstem implant?Laryngoscope. 115(11):1974-8. -PubMed
Shannon RV (2005) Speech and Music have Different Requirements for Spectral Resolution. International Review of Neurobiology. 70:121-134 -PubMed
Shannon, R.V., Fu, Q-J and Galvin, J. (2004) The number of spectral channels required for speech recognition depends on the difficulty of the listening situation. Acta Oto-Laryngologica. Suppl. 552: 50-54. -PubMed
Otto, S.A., Brackmann, D.E., Hitselberger, W.E., Shannon, R.V., and Kuchta J. (2002) The multichannel auditory brainstem implant update: Performance in 61 patients. Journal of Neurosurgery. 96: 1063-1071. -PubMed
Friesen, L., Shannon, R.V., Baskent, D., and Wang, X. (2001) Speech recognition in noise as a function of the number of spectral channels: Comparison of acoustic hearing and cochlear implants. J. Acoust. Soc. Amer. 110(2): 1150-1163. -PubMed