SIGNAL MONOTONICITY .Signal and activation velocities the signal velocity: S=dS/dt S= dS dx dx dt -Sx Signal velocities depend explicitly on action velocities.This dependence will increase the number of unsupervised learning laws.SIGNAL MONOTONICITY S x dt dx dx dS S   = = ' •Signal and activation velocities the signal velocity: =dS/dt S  Signal velocities depend explicitly on action velocities. This dependence will increase the number of unsupervised learning laws