Presentation 2011-11-24
Spatio-temporal properties of spike initiation in response to electric stimuli in an auditory nerve fiber model with stochastic ion channels
Hiroyuki MINO, Parichat KUMSA, Hiroki ARATA,
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Abstract(in English) Cochlear implant is a technology which allows deaf people to hear sounds with electrical stimulations. In this report, spatio-temporal properties of spike initiation in response to electric stimuli are invesitgated in an auditory nerve fiber with stochastic sodium and potassium channels through computer simulations. This kind of properties is exclusively performed through computer simulations, unlike animal experiments. The results of computer simulations show that spike initiations in response to a single pulsatile electric stimlus are randmized spatially and temporally as the electrode-to-fiber increases. Likewise, it is shown that spike initiations in response to the second pulssatile stimulus in a paired two pulse stimulus situation are more distributed spatially and temporally, compared with those of a single pulse stimulus, implying the influences of refractory properties on the randmization of spike initiations. In conclusion, the randmness or fluctuation of spike initiations in response to pulsatile electric stimuli plays an important role in designing stimulus waveforms.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Electrical stimulation / Temporal spike jitter / Stochastic Hodgkin-Huxley model
Paper # MBE2011-61
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Conference Information
Committee MBE
Conference Date 2011/11/17(1days)
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Paper Information
Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Spatio-temporal properties of spike initiation in response to electric stimuli in an auditory nerve fiber model with stochastic ion channels
Sub Title (in English)
Keyword(1) Electrical stimulation
Keyword(2) Temporal spike jitter
Keyword(3) Stochastic Hodgkin-Huxley model
1st Author's Name Hiroyuki MINO
1st Author's Affiliation College of Engineering, Kanto Gakuin University()
2nd Author's Name Parichat KUMSA
2nd Author's Affiliation College of Engineering, Kanto Gakuin University
3rd Author's Name Hiroki ARATA
3rd Author's Affiliation College of Engineering, Kanto Gakuin University
Date 2011-11-24
Paper # MBE2011-61
Volume (vol) vol.111
Number (no) 314
Page pp.pp.-
#Pages 4
Date of Issue