Stimulation of residual hearing in the cat by pulsatile electrical stimulation of the cochlea
AuthorMcAnally, Ken I.; Clark, Graeme M.
Source TitleActa Otolaryngologica
University of Melbourne Author/sClark, Graeme
Document TypeJournal Article
CitationsMcAnally, K. I., & Clark, G. M. (1994). Stimulation of residual hearing in the cat by pulsatile electrical stimulation of the cochlea. Acta Otolaryngologica, 114, 366-372.
Access StatusThis item is currently not available from this repository
Publisher’s permission requested and denied.
Electrical stimulation of the cochlea may excite residual inner hair cells, either by direct electrical stimulation or through a mechanical event. Hair cell mediated responses of the auditory nerve to electrical stimulation were estimated from forward masking of the compound action potential evoked by an acoustic probe. Masking by a fixed electrical masker peaked for probes equal in frequency to the pulse repetition rate and its second harmonic, suggesting a spatially tuned profile of excitation within the cochlea. Furthermore, the tuning curves for masking of a fixed acoustic probe peaked for masker pulse rates close to the frequency of the probe. A secondary peak of masking was commonly seen for electrical stimulation at one half of the probe frequency, suggesting masking of the probe by the second harmonic of the electrical stimulus. These results suggest that pulsatile stimulation at the base of the cochlea generates a spectrally rich mechanical disturbance in which each component propagates to its place of resonance in the cochlea.
Keywordscochlear implant; severe deafness; hair cell stimulation; transduction
- 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