Emergence of Slow-Switching Assemblies in Structured Neuronal Networks
Fig 7
SSA dynamics can result from excitatory-to-inhibitory feedback loops.
A Schematic of a stylized network model with two excitatory-to-inhibitory feedback loops corresponding to the model Eq (8). B Illustration of the corresponding LIF network with such a co-clustered feedback mechanism between neuron types. C Raster plot of the dynamics of a co-clustered LIF network with N = 2000 neurons and c = 20 pairs with excitatory-to-inhibitory feedback. Note that the inhibitory neurons also exhibit SSA dynamics here. D Spectrum of the weight matrix exhibiting a spectral gap both on the left and right hand side of the bulk of the spectrum (see text for details).