Free exploration

Explored area ratio (%)

The ratio of (a) the area the participant covers to (b) the area required to be filled

Reaching distance (cm)

The mean reaching distance in all directions

Completion time (s)

The time required to finish the test

Pointtopoint reaching

Target error (cm)

The linear deviation between (a) the target and (b) the point where the speed drops to below 5% of the maximum speed

Movement time (s)

The mean time to reach the target

Smoothness

The normalized jerk by integrating the absolute jerk value over all routes

Circle drawing

Shape closeness

The measure of closeness between (a) the target shape (circle) and (b) the shape drawn by the participant

Roundness

The measure of how closely the shape drawn by the participant approaches that of a mathematically perfect circle

Completion time (s)

The time required to draw the circle
