Fractions of inputs of each type of signal from each area in the optimal pool of input signals used for decoding. Fractions of inputs across all kinematic parameters that came from PMv vs. MI in the multiarea decoder (MA) for each neural signal (A), all field potential bands-based decoder (mb-LFP; B), or all signals-based decoder (HS; C), for a maximum pool of 50 inputs that were tested with the greedy procedure. Pie chart plots the mean proportion of each type of signal (out of all selected signals) selected by the corresponding decoder. Reach refers to the average fractions obtained for decoding across x, y, and z positions, x, y, and z velocities, and hand speed. Grasp refers to similar average fractions for decoding aperture. A slight overall bias for PMv spikes for both reach and grasp was observed, in part due to the reduced number of units in monkey G, MI, session 2. However, there were no differences in this bias for reach vs. grasp.