Goal-related feedback guides motor exploration and redundancy resolution in human motor skill acquisition
Fig 6
The relative use of DoFs in learned synergies.
A+C: Population median of the absolute values of q1, q2 and q3 in PC1, PC2 and PC3 (unit length vectors) in artificial agents (A) and human participants during training (C). Brighter colours indicate a higher absolute value of the respective DoF. B: Illustration of the home postures H1 (blue) and H2 (red) in goal space. Note that the q3 joint is contracted in H1 and extended in H2. D: Median and interquartile range of absolute q2 values in PC1 across agents (top) and participants during training (bottom).