Open loop performance of the decoder.

<p>(<b>A</b>) Sample plot of prediction values (green) overlaid on recorded positions, velocities or calculated torque values (blue) during manual task. R, correlation coefficient. (<b>B</b>) Summary R value plots of fits (estimates on the same dataset from which the multiple linear regression coefficients were calculated, left 2 columns) and predictions (estimates on the new dataset, right 2 columns) for ipsilateral and contralateral motor cortical signals on multiple behavioral variables. Note the comparable accuracies among dynamic (e.g., torque) and kinematic (e.g., position, velocity) variables. Acronym key: fit, fit values; pred, prediction values; Rt, Right; Lt, Left; M1, primary motor cortex (shoulder and elbow representative region); Sh, shoulder; Elb, elbow; Tor, torque; Pos, position; Vel, velocity; Acc, acceleration; EndPt, End-point/end-effector – located about the tip of middle finger of the subject; F, force; X, X-direction; Y, Y-direction; mag, magnitude.