Figure 2
Grand average TFRs in C3, Cz and C4 for hand motor imagery for all subject groups. This figure shows the averaged TFRs across 30 participants, 15 female and 15 male subjects in 5Â Hz to 25Â Hz and from 1Â s to 7Â s. The dashed line at 3Â seconds indicates motor imagery onset. ERD is shown in blue and ERS in red. The black circles highlight the maximum ERD generated.