Abstract
We propose a new integrate-and-fire model as a single neuron model. We study a globally coupled noisy integrate-and-fire model with inhibitory interactions using the Fokker-Planck equation and the Langevin equation, and find a reentrant transition of oscillatory states. Intermittent time evolution of neuron firing is found in strongly inhibited systems. We also propose an integrate-and-fire-or-burst model including the dynamics of the low-threshold Ca2+ current based on the new integrate-and-fire model. We study a globally coupled noisy integrate-and-fire-or-burst model with an inhibitory interaction using the Fokker-Planck equation and find bistability of the tonic mode and the burst mode. Doubly periodic oscillation appears in a coupled system consisting of two neuron assemblies. This oscillation is similar to the spindle oscillation seen in thalamic cells.
Original language | English |
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Pages (from-to) | 539-554 |
Number of pages | 16 |
Journal | Progress of Theoretical Physics |
Volume | 114 |
Issue number | 3 |
DOIs | |
Publication status | Published - Sep 2005 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)