Current distributions of intracochlear electrodes in cats [Abstract]
AuthorO'Leary, S. J.; Black, R. C.; Clark, Graeme M.
Source TitleMechanisms of Hearing
PublisherMonash University Press
Document TypeBook Item
CitationsO'Leary, S. J., Black, R. C., & Clark, G. M. (1983). Current distributions of intracochlear electrodes in cats [Abstract]. In W. R. Webster & L. M. Aitkin (Ed.), Mechanisms of Hearing, pp. 225. Clayton: Monash University Press.
Access StatusOpen Access
This is an abstract of a paper presented at a symposium on the Mechanisms of Hearing, held at Monash University, Melbourne, Australia from August 23-27, 1983. This version is reproduced with the permission of Monash University Press.
A non-invasive technique, "two electrode mapping" has been developed to measure the current distribution of a multichannel electrode array within the feline scala tympani. An electrode’s current distribution is an important determinant of its ability to excite discrete neural groups. The electrode array, a “banded electrode” is a series of platinum rings, supported by a cylinder of silastic which fits freely into the scala tympani. All cats had normal hearing pre-operatively and were implanted through the round window. Hearing was normal within 10 dB after implantation, necessitating the presentation of 30-40 dB white noise to the implanted ear throughout experimentation to mask the electrophonic component (Black et al., 1983).
Keywordsotolaryngology; electrode array; cochlear implant; safety studies
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- Graeme Clark Collection