Dynamically-Coupled Oscillators -- Cooperative Behavior via Dynamical Interaction --

Details Dynamically-Coupled Oscillators -- Cooperative Behavior via Dynamical Interaction -- Dynamically-Coupled Oscillators -- Cooperative Behavior via Dynamical Interaction --

2002-07-22

arxiv.org/abs/cond-mat/0207506v2

Physics

Condensed Matter

Disordered Systems and Neural Networks

10 pages, 3 figures

Scientific paper

10.1143/JPSJ.72.1334

We propose a theoretical framework to study the cooperative behavior of dynamically coupled oscillators (DCOs) that possess dynamical interactions. Then, to understand synchronization phenomena in networks of interneurons which possess inhibitory interactions, we propose a DCO model with dynamics of interactions that tend to cause 180-degree phase lags. Employing an approach developed here, we demonstrate that although our model displays synchronization at high frequencies, it does not exhibit synchronization at low frequencies because this dynamical interaction does not cause a phase lag sufficiently large to cancel the effect of the inhibition. We interpret the disappearance of synchronization in our model with decreasing frequency as describing the breakdown of synchronization in the interneuron network of the CA1 area below the critical frequency of 20 Hz.

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