TY  - JOUR
A1  - Boedeker, Hendrik Ulrich
A1  - Beta, Carsten
A1  - Frank, Till D.
A1  - Bodenschatz, Eberhard
T1  - Quantitative analysis of random ameboid motion
N2  - We quantify random migration of the social ameba Dictyostelium discoideum. We demonstrate that the statistics of cell motion can be described by an underlying Langevin-type stochastic differential equation. An analytic expression for the velocity distribution function is derived. The separation into deterministic and stochastic parts of the movement shows that the cells undergo a damped motion with multiplicative noise. Both contributions to the dynamics display a distinct response to external physiological stimuli. The deterministic component depends on the developmental state and ambient levels of signaling substances, while the stochastic part does not.
Y1  - 2010
UR  - http://iopscience.iop.org/0295-5075/
U6  - https://doi.org/10.1209/0295-5075/90/28005
SN  - 0295-5075
ER  -