Strange Responses of 2-dimensional Hindmarsh-Rose model to Stochastic inputs

カテゴリ: 部門大会

論文No: MC2-2

グループ名: 【C】平成22年電気学会電子・情報・システム部門大会講演論文集

発行日: 2010/09/02

タイトル(英語): Strange Responses of 2-dimensional Hindmarsh-Rose model to Stochastic inputs

著者名: 保坂 亮介(福岡大学),酒井 裕(玉川大学),合原 一幸(東京大学)

著者名(英語): ryosuke hosaka(Fukuoka University),yutaka sakai(Tamagawa University),kazuyuki aihara(University of Tokyo)

キーワード: Hindmarsh-Rose|bifurcation

要約(日本語): A recent work reported a strange response of the Hodgkin-Huxley neuron to the fluctuated inputs that an irregularity of spike trains is inversely proportional to an input irregularity.
In this paper, we investigated an origin of the strange response by using the Hindmarsh-Rose neuron.
We provided the parameter regions for bifurcations
and confirmed that the Hindmarsh-Rose neuron reproduces the strange response in dynamics of Saddle-Node and Subcritical Hopf bifurcations.
In both bifurcation cases, the Hindmarsh-Rose neuron shows a bistability of resting potential and repetitive firing.
This indicates that the bistability is the origin of the strange input-output relationship.

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