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Professor Dexter Irvine, Senior Research Advisor

Professor Dexter Irvine is an Honorary Research Fellow at the Bionics Institute and an Emeritus Professor in the Sub-Faculty of Psychological and Biomedical Sciences at Monash University. He has a background in experimental psychology and auditory neuroscience.

Throughout his career Professor Irvine’s research has been directed to a number of aspects of central auditory processing, notably mechanisms of sound localization, the functional organization of the auditory cortex, and plasticity in the adult auditory system. His work at the Bionics Institute has focused on central auditory system processing of input from cochlear implant stimulation, and plasticity as a consequence of such stimulation, in animal models. His current research is directed to the way in which combined electrical and acoustic stimulation is processed in the auditory midbrain and cortex. Although cochlear implantation in patients with residual low-frequency hearing is well established and very successful, there is little understanding of the way in which the two inputs are processed and integrated in the brain.

Professor Irvine has published 99 peer-reviewed scientific papers, a monograph on auditory brainstem processing, 25 book chapters, and a co-edited book on auditory spectral processing. He has been a chief investigator on more than 20 major Australian and international project grants, including NHMRC and ARC.

Research projects

Central processing of electro-acoustic stimulation

Recent Publications

1. Thompson. A., Irvine, D. R. F. and Fallon, J .B. Provision of interaural time difference information in chronic intracochlear electrical stimulation enhances neural sensitivity to these differences in neonatally deafened cats. Hearing. Research. 2021, 406, 108253.

2. Irvine, D.R.F. Auditory perceptual learning and changes in the conceptualization of auditory cortex. Hearing. Research, 2018, 366: 3-16.

3. Irvine, D.R.F. Plasticity in the auditory system. Hearing. Research. 2018, 362: 61-73.

4. Fallon J.B., Irving, S., Pannu, S.S., Tooker, A.C., Wise, A.K., Shepherd, R.K. and Irvine, D.R.F. Second spatial derivative analysis of cortical surface potentials recorded in cat primary auditory cortex using thin film surface arrays: Comparisons with multi-unit data. Journal of Neuroscience Methods, 2016, 267: 14-20

5. Peterson, A. J., Irvine, D. R. F. and Heil, P. A model of synaptic-vesicle-pool depletion and replenishment can account for the inter-spike-interval distributions and non-renewal properties of spontaneous spike trains of auditory-nerve fibers. Journal of Neuroscience, 2014, 34: 15097-15109.

Fallon J. B., Shepherd, R. K., Nayagam, D. A. X., Wise, A. K., Heffer, L. F., Landry, T.G., and Irvine, D. R. F. Effects of deafness and cochlear implant use on temporal response characteristics in cat primary auditory cortex. Hearing Research, 2014, 315:1-9.

7. Fallon J. B., Shepherd, R. K., and Irvine, D. R. F., Effects of chronic cochlear electrical stimulation after an extended period of profound deafness on primary auditory cortex organization in cats. European Journal of Neuroscience, 2014, 39: 811–820

8. Heil, P., Neubauer, H., and Irvine, D. R. F. An improved model for the rate – level functions of auditory-nerve fibers. Journal of Neuroscience, 2011, 31:15424-15437.

9. Eramudugolla, R., Boyce, A., Irvine, D. R. F. & Mattingley, J. Effects of prismatic adaptation on spatial gradients in neglect: a comparison of visual and auditory target detection with central attentional load. Neuropsychologia, 2010, 48: 2681-2692.

10. Rajan, R. and Irvine, D.R.F. Severe and extensive neonatal hearing loss results in auditory cortex plasticity that differentiates into two regions. European Journal of Neuroscience, 2010, 31: 1999-2013.

11. Fallon J. B., Irvine, D. R. F., Brown, M. and Shepherd, R. K. effects of neonatal partial deafness and chronic intracochlear electrical stimulation on auditory and electrical response characteristics in primary auditory cortex. Hearing Research, 2009, 257:93-105.

See more publications by Dexter Irvine in Google Scholar

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