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Intrinsic modulation of pulse-coupled integrate-and-fire neurons
journal contribution
posted on 2006-05-11, 16:38 authored by S. Coombes, J. LordIntrinsic neuromodulation is observed in sensory and neuromuscular circuits and in biological central pattern generators. We model a simple neuronal circuit with a system of two pulse-coupled integrate-and-fire neurons and explore the parameter regimes for periodic firing behavior. The inclusion of biologically realistic features shows that the speed and onset of neuronal response plays a crucial role in determining the firing phase for periodic rhythms. We explore the neurophysiological function of distributed delays arising from both the synaptic transmission process and dendritic structure as well as discrete delays associated with axonal communication delays. Bifurcation and stability diagrams are constructed with a mixture of simple analysis, numerical continuation and the Kuramoto phase-reduction technique. Moreover, we show that, for asynchronous behavior, the strength of electrical synapses can control the firing rate of the system.
History
School
- Science
Department
- Mathematical Sciences
Pages
222082 bytesCitation
COOMBES and LORD, 1997. Intrinsic modulation of pulse-coupled integrate-and-fire neurons. Physical Review E, 56(5), pp. 5809–5818Publisher
© American Physical SocietyPublication date
1997Notes
This article was published in the journal, Physical Review E [© American Physical Society]. It is also available at: http://link.aps.org/abstract/PRE/v56/p5809.ISSN
1063-651xLanguage
- en