Figure 6
From: Brownian processes in human motor control support descending neural velocity commands
Simulation results of the proposed control model across three tasks: (a) crank turning, (b) hand posture, and (c) quiet standing. The top row of plots shows the time evolution (colored lines) of position relative to the expected nominal trajectory in the three cases; the black dashed line in the crank-turning trajectory plot represents the expected nominal trajectory for the target crank-turning speed, while the black dashed lines in the right two trajectory plots present the thresholds to trigger intermittent control action in the posture control tasks. The middle row of plots shows the variance over time across the ensemble. The bottom row presents the Bode magnitude plots of the average power spectral densities in the three different tasks. An additional -20 dB/dec dashed-black reference line is added to facilitate interpretation of the results.
