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Comparison of the experimental data (filled symbols with error bars) with the results of the automaton (open symbols) as a function of the number of iterations of the automaton, in the case of migration on a substrate of collagen (diamonds) and migration over a monolayer of astrocytes (triangles). For all times, the standard deviations for the model (not represented in the figure) are equal to 0.18 for migration on a substrate of collagen and 0.06 for migration on astrocytes.
