  The processes that determine the establishment of the complex morphology of
neurons during development are still poorly understood. We present experiments
that use live imaging to examine the role of vesicle transport and propose a
lattice-based model that shows symmetry breaking features similar to a neuron
during its polarization. In a otherwise symmetric situation our model predicts
that a difference in neurite length increases the growth potential of the
longer neurite indicating that vesicle transport can be regarded as a major
factor in neurite growth.
