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Tricritical behavior in a neural model with excitatory and inhibitory units
Joaquin Almeira, Tomas S. Grigera, Dante R. Chialvo +1
While the support for the relevance of critical dynamics to brain function is increasing, there is much less agreement on the exact nature of the advocated critical point. Thus, a…
Scale free density and correlations fluctuations in the dynamics of large microbial ecosystems
Nahuel Zamponi, Tomas S. Grigera, Ewa Gudowska-Nowak +1
Microorganisms self-organize in very large communities exhibiting complex fluctuations. Despite recent advances, still the mechanism by which these systems are able to exhibit larg…
Self Tuned Criticality: Controlling a neuron near its bifurcation point via temporal correlations
Juliane T. Moraes, Eyisto J. Aguilar Trejo, Sabrina Camargo +2
Previous work showed that the collective activity of large neuronal networks can be tamed to remain near its critical point by a feedback control that maximizes the temporal correl…
Scale-free correlations in the dynamics of a small (N ~ 10000) cortical network
Sabrina Camargo, Daniel A. Martin, Eyisto J. Aguilar Trejo +5
The advent of novel opto-genetics technology allows the recording of brain activity with a resolution never seen before. The characterisation of these very large data sets offers n…
Finite-size correlation behavior near a critical point: a simple metric for monitoring the state of a neural network
Eyisto J. Aguilar Trejo, Daniel A. Martin, Dulara De Zoysa +5
In this article, a correlation metric is proposed for the inference of the dynamical state of neuronal networks. is computed from the scaling of the correlation length…