Figure 1.

Diagram representing the coupling between different scale-based models. Two groups of neuronal populations, described by neural mass (NM) models, are coupled through a neuronal network (NN). The NMs represent the average dynamics of three coupled neural populations: pyramidal (P), excitatory interneurons (EI) and inhibitory interneurons (II). The NN consists of a set of 4000 excitatory and inhibitory interconnected neurons. Only a subset of neurons of the NN is coupled with the NMs. The coupling strength between the NMs and the NN is given by the three parameters, γ₁, γ₂ and γ₃. γ₁ quantifies the coupling from the pyramidal population of the NMs to the NN subpopulation. γ₂ and γ₃ represent the intensity of the excitatory and inhibitory couplings, respectively, from the NN subpopulation to the NMs’ pyramidal population. (Online version in colour.)