Figure 7
From: Analytical results on the Beauchemin model of lymphocyte migration

Taxis skews the random motility component. Displacement of in silico cells when applying the four different methods of simulating biased migration along the X axis using the methods discussed in this paper, i.e., the simple phenomenological model (black), orthotaxis (red), topotaxis (blue), and klinotaxis (green). For each panel, N = 1000 cells were simulated using the parameters tpause = 0.5 min, tfree = 2.0 min, and vfree = 18.8 μ m/min. Cell displacements are shown after one hour of simulation time, and the taxis parameters p are in each case set such that the expected displacement is 300 μ m per hour. The length of the scale bars is proportional to the dimension-wise variances of the cell displacements, demonstrating that these variances change when biased migration is introduced.