This is a careful and systematic simulation study that convincingly illustrates a role for intrinsic resonance properties in suppressing the effects of cellular and network heterogeneities in a continuous attractor network model of grid cell firing patterns. The study shows that overly simplified models of neurons can lead to fragility in important network level behaviour and that intrinsic neuronal properties strongly influence relevant network level dynamics. This an important result that likely applies to a broad range of network models. Further investigation into the mechanism, possibly using a simplified model, would substantiate the simulation results and fully exploit the power of models in providing intuition and illustrating the generality of the observations.
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