A, Behavioral setup with NHP, touchscreen, and transducer. The NHP sat in the chair so it could reach the touchscreen. The transducer was aligned to preplanned targets using a stereotaxic positioner and the Brainsight neuronavigation system. A water degasser was connected to a bladder coupling system that filled the space between the transducer and the scalp. A function generator created the sonication waveform, which was amplified and input to the transducer. B, Three example trials of the task as viewed by the NHP. During the CUE period, a yellow bar prompted the NHP to initiate the trial. The orientation of the bar indicated the amount of reward given for correct performance (vertical = 1 drop; horizontal = 5 drops.) Two motion patches then appeared (CHOICE) and the correct response was to touch the patch in which the dots were moving coherently.