Goal-related feedback guides motor exploration and redundancy resolution in human motor skill acquisition
Fig 8
Percentage of variance in the across-participant reach-endpoint space that is explained by the first, second and third PC across time.
More variance explained by the first synergies indicates more organization of motor control. Left: PCA on human morphology (left index, right index, right middle fingers). Right: PCA on the task motor space (q1, q2, q3). Top: test blocks, bottom: training blocks.