The dependence of auditory nerve rate adaptation on electric stimulus parameters, electrode position, and fiber diameter: a computer model study.
The dependence of auditory nerve rate adaptation on electric stimulus parameters, electrode position, and fiber diameter: a computer model study.
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听觉神经速率适应对电刺激参数、电极位置和纤维直径的依赖性:计算机模型研究。
DOI:
10.1007/s10162-009-0199-2
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Abbas,PaulJ
中科院分区:
文献类型:
--
作者:
Woo,Jihwan;Miller,CharlesA;Abbas,PaulJ
This paper describes results from a stochastic computational neuron model that simulates the effects of rate adaptation on the responses to electrical stimulation in the form of pulse trains. We recently reported results from a single-node computational model that included a novel element that tracks external potassium ion concentration so as to modify membrane voltage and cause adaptation-like responses. Here, we report on an improved version of the model that incorporates the anatomical components of a complete feline auditory nerve fiber (ANF) so that conduction velocity and effects of manipulating the site of excitation can be evaluated. Model results demonstrate rate adaptation and changes in spike amplitude similar to those reported for feline ANFs. Changing the site of excitation from a central to a peripheral axonal site resulted in plausible changes in latency and relative spread (i.e., dynamic range). Also, increasing the distance between a modeled ANF and a stimulus electrode tended to decrease the degree of rate adaptation observed in pulse-train responses. This effect was clearly observed for high-rate (5,000 pulse/s) trains but not low-rate (250 pulse/s) trains. Finally, for relatively short electrode-to-ANF distances, increases in modeled ANF diameter increased the degree of rate adaptation. These results are compared against available feline ANF data, and possible effects of individual parameters are discussed.
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影响因子:
5
作者:
Y. Shibouta;Z. Terashita;Y. Inada;K. Nishikawa;S. Kikuchi
通讯作者:
S. Kikuchi
影响因子:
8.3
作者:
K. Martin;R. Zipser;R. Horton
通讯作者:
R. Horton
DOI:
--
发表时间:
1977
期刊:
Prostaglandins
影响因子:
--
作者:
Martin A. Wasserman;D. Ducharme;Robert L. Griffin;Gary L. Degraaf;Franklin G. Robinson
通讯作者:
Franklin G. Robinson
DOI:
--
发表时间:
1980
期刊:
The American journal of gastroenterology
影响因子:
--
作者:
Bredfeldt Je;O'Laughlin Jc;Durham Jb;Blessing Ld
通讯作者:
Blessing Ld
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
Rake Gw;Jacobs Rl
通讯作者:
Jacobs Rl