Synergy emergence in deep reinforcement motor learning

Human motor control has always been efficient at executing complex movements naturally, efficiently, and without much thought involved. This is because of the existence of motor synergy in the central nervous system (CNS). Motor synergy allows the CNS to use a smaller set of variables to control a large group of muscles; thereby simplifying the control over coordinated and complex movements.

from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2020/03/200319103217.htm