Experiment 1 setup.

<p>A) Subjects were trained to initiate movement synchronous with the last of four tones played at 500ms intervals. B) Subjects made center-out movements to “shoot” through one of 8 equally spaced targets. The target appeared synchronously with the first tone. On 30% of trials, the target was jumped by ±45°, ±90° or ±135° at a random time between 150 and 550ms before the fourth (i.e. final) tone. Solid arrow/bold target indicates movement required before target jump. Dashed arrows indicate potential movements required after a target jump.