Fast response and temporal coherent oscillations in small-world networks.
We have investigated the role that different connectivity regimes play in the dynamics of a network of Hodgkin-Huxley neurons by computer simulations. The different connectivity topologies exhibit the following features: random topologies give rise to fast system response yet are unable to produce coherent oscillations in the average activity of the network; on the other hand, regular topologies give rise to coherent oscillations, but in a temporal scale that is not in accordance with fast signal processing. Finally, small-world topologies, which fall between random and regular ones, take advantage of the best features of both, giving rise to fast system response with coherent oscillations.
Lago-Fernández
L F
LF
Grupo de Neurocomputación Biológica, E.T.S. de Ingeniería Informática, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Huerta
R
R
Corbacho
F
F
Sigüenza
J A
JA
D000818:Animals; D003198:Computer Simulation; D006110:Grasshoppers; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D009991:Oscillometry; D015398:Signal Transduction