Arbitrary visuomotor map learning. (A) Task design and display (left), intuitive visuomotor mappings (center), and arbitrary visuomotor mappings (right). (B) Learning curves (left) in the intuitive condition, shown as percent success (i.e., successful navigation to the target within 6 sec). Note that for L. S. J., 100% reflects a single successful trial. Error shading = 1 SEM. (C) Learning curves (left) and average presses per trial (right) in the three-key arbitrary mapping condition and (D) six-key arbitrary mapping conditions.