Movie S3.

This movie demonstrates that the reflex-controller which does not use stochastically-spiking neural network (sSNN) fails to start walking if the ground is extremely slippery (indicated by the blue plate in the clip). This is because the reflex-controller has only limited ability to adaptively form a stable walking gait. The friction coefficient of the blue plate is μ = 0.04 and μ = 10 otherwise.