Figure 2.

Task schematic. a, An illustration of the hand control task and the selection of control electrodes (CEs). The monkey used a manipulandum to move a cursor in a 4-target center-out reaching task. Spikes rates and cursor velocity were simultaneously recorded. The absolute value of correlation (∣R∣, see Methods) between the two signals on each electrode was calculated and used to select the CE. See Methods. b, An illustration of the 2D ONF control task. The monkey was required to control the cursor velocity with HGA and spike rate using pre-trained filters with fixed weights from the CE. The task was a 2-target center-out task.