Fig. 5

A typical example of preprocessed data. Typical results of the application of the windowing and filtering steps. The distinct tasks (T1, T2, T3 and T4) are separated by the pulses. Information regarding sensors 1 and 2 are presented in accordance to their physical location shown in Figs. 1 and 2. The external pulses are indicated by vertical lines between tasks. In periods between sequence of tasks the subject was free to execute any desired movement or to relax, thus, they are not considered in the data analysis