Psychophysics of electrical stimulation of the auditory nerve: implications for coding of sound and speech processing for cochlear implants [Keynote address]
AuthorClark, Graeme M.
Source TitleAustralian Journal of Audiology
University of Melbourne Author/sClark, Graeme
Document TypeJournal Item
CitationsClark, G. M. (1994). Psychophysics of electrical stimulation of the auditory nerve: implications for coding of sound and speech processing for cochlear implants [Keynote address]. Australian Journal of Audiology, 15(suppl.2), 02-Jan.
Access StatusOpen Access
This is a publisher’s version of an article published in Australian Journal of Audiology 1994. This version is reproduced with permission from the publisher, Australian Academic Press. http://www.australianacademicpress.com.au/
Psychophysical studies on electrical stimulation of the auditory nerve have contributed to our understanding of the coding of sound and speech signals. Those studies have also helped establish speech processing strategies for multiple-electrode cochlear implant patients. The first studies were on temporal coding of frequency and pitch perception to help determine whether a single or multiple electrode implant would be preferable for the coding of speech frequencies. Temporal frequency coding was initially studied in the experimental animal by measuring difference limens for frequency of stimulus rate. The results showed that rate coding occurs for low frequencies up to 200 or even 600 pulses per second. It was concluded that higher speech frequencies cannot be conveyed by variations in stimulus rate but require multiple-electrode stimulation. These studies in experimental animals were essentially confirmed in the human.
KeywordsAustralian Bionic Ear Institute; electrical stimulation; auditory nerve; cochlear implants; speech processing; audiology; pitch perception
- Click on "Export Reference in RIS Format" and choose "open with... Endnote".
- Click on "Export Reference in RIS Format". Login to Refworks, go to References => Import References
- Graeme Clark Collection