Measurements and equipment. (a) Experiment setup in fMRI. The participant lays on the MRI-table with the movement actuators attached to the index-fingers and feet. (b) Blueprints of the index finger and ankle movement actuators. (c) Sensorimotor performance tests for the hand, including 9-hole-peg, Box-and-Block, tactile monofilament, Jamar-strength and shape recognition tests. (d) Sensorimotor performance tests for the foot, including standing postural-balance and gait-variability test. (e) Example structure of run 1 with first and last block lists shown. Run 2 has a similar structure with more block lists. Note that the block order is different for each participant.