Pulse propagation in discrete excitatory networks of integrate-and-fire neurons.
We study the propagation of solitary waves in a discrete excitatory network of integrate-and-fire neurons. We show the existence and the stability of a fast wave and a family of slow waves. Fast waves are similar to those already described in continuum networks. Stable slow waves have not been previously reported in purely excitatory networks and their propagation is particular to the discrete nature of the network. The robustness of our results is studied in the presence of noise.
Laboratory of Computational Neuroscience, Swiss Federal Institute of Technology, Lausanne, Switzerland. laurent@badel.org
Laurent
L
Badel
Arnaud
A
Tonnelier
D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D001921:Brain / Q000502:physiology; D003198:Computer Simulation; D004056:Differential Threshold / Q000502:physiology*; D019706:Excitatory Postsynaptic Potentials / Q000502:physiology*; D006801:Humans; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D013269:Stochastic Processes; D009435:Synaptic Transmission / Q000502:physiology*