Multimodal Transition and Excitability of a Neural Oscillator

• Authors: L. Borkowski
• Languages of publication: EN

Abstracts

EN

We analyze the response of the Morris-Lecar model to a periodic train of short current pulses in the period-amplitude plane. For a wide parameter range encompassing both class 2 and class 3 behavior in the Hodgkin classification there is a multimodal transition between the set of odd modes and the set of all modes. It is located between the 2:1 and 3:1 locked-in regions. It is the same dynamic instability as the one discovered earlier in the Hodgkin-Huxley model and observed experimentally in squid giant axons. It appears simultaneously with the bistability of the states 2:1 and 3:1 in the perithreshold regime. These results imply that the multimodal transition may be a universal property of resonant neurons.

Keywords

EN

87.19.lb; 87.19.ll; 87.19.ln

Discipline

• 87.19.lb: Action potential propagation and axons
• 87.19.ll: Models of single neurons and networks
• 87.19.ln: Oscillations and resonance

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 4
• Pages: 776-780

Dates

published

2012-10

received

2012-03-29

(unknown)

2012-06-27

Contributors

author

L. Borkowski

• Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.122.776