PMID: 9442822Jan 27, 1998Paper

Comparison of current waveforms for the electrical stimulation of residual low frequency hearing

Acta Oto-laryngologica
K I McAnallyG M Clark

Abstract

Many cochlear prostheses employ charge-balanced biphasic current pulses. These pulses have little energy at low frequencies resulting in limited stimulation of low frequency hearing by mechanical responses to the electrical stimulus. However, if electro-mechanical transduction within the cochlea is nonlinear, electrical stimulation with asymmetric, charge-balanced current pulses may result in a mechanical response with significantly more low frequency energy. We estimated the mechanical response at low frequencies to pulsatile electrical stimulation of the cochlea. The auditory nerve compound action potential evoked by low frequency tones was forward-masked by a train of symmetric or asymmetric current pulses. Masking by asymmetric current pulses was not significantly different from masking by symmetric pulses matched for pulse duration and charge. In conclusion, there appears to be no advantage to using asymmetric current pulses for the mechanical stimulation of residual low frequency hearing by electrical stimulation of the cochlea.

References

Mar 1, 1976·The Journal of the Acoustical Society of America·P Dallos, M A Cheatham
Aug 1, 1992·Journal of Neuroscience Methods·R E MillardG M Clark
Oct 1, 1990·Archives of Otolaryngology--head & Neck Surgery·B M SteinbergA L Abramson
Jul 1, 1987·The Journal of the Acoustical Society of America·P J BlameyP M Seligman
Jan 11, 1985·Science·W E BrownellY de Ribaupierre
Jan 1, 1983·Acta Oto-laryngologica. Supplementum·R K ShepherdR C Black
Jan 1, 1990·Acta Oto-laryngologica·Arne RisbergGöran Bredberg

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Citations

Jan 18, 2007·The Journal of the Acoustical Society of America·Colleen G Le PrellDavid F Dolan
Aug 15, 2017·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Mika SatoAndrej Kral

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