Table 1 Description of mouse movement parameters.
Motor parameter | Description | Formula |
|---|---|---|
Distance | The overall distance from the mouse movements | \(\sum_{i=1}^{n}\sqrt{{\left({x}_{n}-{x}_{n-1}\right)}^{2}+{({y}_{n}-{y}_{n-1})}^{2}}\) |
Entropy | The Shannon entropy of the mouse movements, where the underlying distribution (random variable) is the two-dimensional coordinate of the location of the mouse on the screen | \(-\sum_{i=1}^{n}{f(x;y)}_{i}\times lg{ f(x;y)}_{i}\) |
Number of tries | The sum of all mouse clicks | \(\sum all \; clicks\) |
Time | The time required to complete the task | \({t}_{n}-{t}_{0}\) |
Speed | The speed of the mouse movements | \(\frac{distance}{time}\) |
Velocity | The velocity of the mouse movements | \(\sum_{i=0}^{n}\frac{{distance}_{n}-{distance}_{n-1}}{{time}_{n}-{time}_{n-1}}\) |
