Training protocolsIn the ‘circle’ e

Training protocols
In the ‘circle’ exercise (Figure 1a), a target moved around the
center of the screen. The participant was instructed to track
the target and hold the COP indicator over it. In the ‘target’
exercise (Figure 1b), the participant was asked to keep the
COP indicator in the center of a target as still as possible. In
the ‘hunting’ exercise (Figure 1c), a target appeared on the
screen in random locations. Once the COP indicator was
held ‘still’ within the boundaries of the target for 3 s, the
target would reappear in a different location. In the
‘octahedron’ exercise (Figure 1d), eight targets were presented
at 45-degree angles from one another around the
center. The participant was asked to move the COP indicator
to each target, and hold the position for 5 s. In the
‘basketball’ exercise (Figure 1e), three targets (balls) of
different color appeared on the top of the screen. The
participant was asked to ‘capture’ the target, and ‘drag’ it
into the basket of the matching color. In the ‘ski’ exercise