Figure 2:

(A) Radial-8 task. Eight targets are presented on the screen (blue circle). T10 was instructed to move the cursor (white circle) to the goal (red circle). Targets were acquired when the cursor overlapped the target for 300 ms. (B) Grid task. Square targets were arranged in a grid. T10 was instructed to move the cursor (white circle) to the target (green square). A target was acquired when T10 held the cursor within any square for 1 second. Note that unlike the radial-8 task, incorrect targets were scored.