The effect of pulsatile intracochlear electrical stimulation on intracellularly recorded cochlear nucleus neurons
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1997
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Cochlear Implants: XVI World Congress of Otohinolaryngology Head and Neck Surgery
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Monduzzi Editore
Melbourne Authors
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Conference Paper
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Paolini, A., & Clark, G. M. (1997). The effect of pulsatile intracochlear electrical stimulation on intracellularly recorded cochlear nucleus neurons. In Cochlear Implants: XVI World Congress of Otohinolaryngology Head and Neck Surgery, Sydney, N.S.W.
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This is a publisher’s version of a paper from XVI World Congress of Otohinolaryngology Head and Neck Surgery 1997, published by Monduzzi Editore. This version is reproduced with the permission of the publisher.
Abstract
The anterior division of the ventral cochlear nucleus (AVCN) is the first relay station of the auditory pathway. We examined responses of neurons in the A VCN to intracochlear electrical stimulation using in vivo intracellular recordings. Twin pulse stimulation results indicated that these neurones evoke action potentials which are able to follow pulsatile stimulation at high rates. This ability to respond to each pulse along the stimulus train diminished when stimulus duration was increased to 50 ms. At rates 400 Hz and below in all neurones tested a deterministic response was seen to this longer duration pulsatile stimulation. With increasing rate of stimulation the response become more stochastic with apparent loss of encoding ability. These results have in1pIications in the clinical application of cochlear implants operating at high stimulus rates.
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Keywords
cochlear implants, electrical stimulation, otolaryngology