Sequential dynamics in the motif of excitatory coupled elements
In this article a new model of motif (small ensemble) of neuron-like elements is proposed. It is built with the use of the generalized Lotka–Volterra model with excitatory couplings. The main motivation for this work comes from the problems of neuroscience where excitatory couplings are proved to be the predominant type of interaction between neurons of the brain. In this paper it is shown that there are two modes depending on the type of coupling between the elements: the mode with a stable heteroclinic cycle and the mode with a stable limit cycle. Our second goal is to examine the chaotic dynamics of the generalized three-dimensional Lotka–Volterra model.
KeywordsNeuronal motifs Lotka–Volterra model heteroclinic cycle period-doubling bifurcation Feigenbaum scenario strange attractor Lyapunov exponents
MSC2010 numbers37G35 70K05 70K50 70K55