Figure 4. Detailed classification accuracy results.

The classification accuracy results using NIRS signals from the prefrontal (A), the right parietal (B) and both the prefrontal and the right parietal areas (C) are provided. From left to right, the columns present (i) subject number, the classification accuracy - in percentage of total classification trials - exploiting (ii) [O₂Hb], (iii) [HHb] and (iv) both [O₂Hb] and [HHb] as features of interest.