Characteristic of Motor Control in Three-Dimensional Circular Tracking Movements during Monocular Vision

Figure 1

Experimental procedure. (a) Schematic of the circular tracking experiment for the body’s frontal plane (ROT0). (b) Schematic of the circular tracking experiment for the body’s sagittal plane (ROT90). Green lines indicate the target’s path in the 3D VR space. The three graphs in the middle show the target’s path as seen from the front (left), above (center), and the side (right) from the subject’s viewpoint. The target’s path was not displayed to the subjects during the experiment. The three lower graphs show a typical trial of the target’s path (green line) and the tracer’s path (black line) for each axis versus time. Insets in the upper-right of (a) and (b) show that how three outcome measures (∆R, ∆θ, and ∆ω) were derived from the path data of the target (or the tracer) for each plane.

(a)

(b)