Achieved angles across joystick tasks, instructions, and DOBs. Green: joystick balance control task only; data from control 1, N = 8. Gray: joystick balance control and indication tasks; achieved angle data from main experiment, N = 16. Solid lines show average achieved angles relative to the gravitational vertical, and shaded areas show group standard deviations. Means and standard deviations for slopes, b, of the regressions are inset in the graphs.