Figure 5

Periodicity in amoeboid migration. (a) Velocity range extracted from a single cell over time (red line), and its partial Fourier decomposition (blue line), formed of the average speed (dashed line) and the two most relevant frequency components (black lines). (b) Histogram of the associated periods extracted from 10 cells, and the associated sum of Gaussians fit (blue curves) obtained by nonlinear least-squares fitting. (c) Time-aligned acceleration profiles along the direction of protrusion for two blebs of a same cell.