Figure 1.

MIST-VR, Manipulative Diathermy task. A sphere is grasped with virtual graspers and placed precisely inside a transparent cube. When the sphere is properly placed and held still inside the cube, a smaller cube appears on the side of the sphere. The virtual diathermy instrument is then placed inside of the smaller cube, and diathermy is applied with a mechanical pedal for a specified burn time. Each “attempt” consists of multiple repetitions of this task in varying spatial orientations.