Stochastic resonance in the LIF models with input or threshold noise

被引:4
|
作者
Barbi, M [1 ]
Reale, L [1 ]
机构
[1] CNR, Ist Biofis, I-56124 Pisa, Italy
关键词
stochastic resonance; LIF model; threshold noise;
D O I
10.1016/j.biosystems.2004.09.003
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
In this paper, two stochastic versions of the LIF neural model are considered: one with the noise signal applied to the firing threshold, the other having it added to the input current. Then, adopting a discontinuous stepwise noise whose innovations are uncorrelated and gaussian distributed, the behaviours of the two models pertaining to the stochastic resonance (SR) are analysed and compared. Furthermore, it is shown that introducing a suitable time correlation into the noise signal brings us front the first model to the second one. (C) 2004 Published by Elsevier Ireland Ltd.
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页码:61 / 66
页数:6
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