Table 3 Global relative power and median frequency

Delta (1–4 Hz)

0.27 (0.17–0.34)

0.28 (0.23–0.29)

0.27 (0.19–0.32)

n.s.

Theta (4–8 Hz)

0.24 (0.18–0.29)

0.18 (0.14–0.21)

0.15 (0.13–0.21)

<0.01*

Alpha1 (8–10 Hz)

0.18 (0.11–0.32)

0.17 (0.16–0.29)

0.21 (0.12–0.31)

n.s.

Alpha2 (10–13 Hz)

0.09 (0.07–0.13)

0.14 (0.12–0.15)

0.12 (0.09–0.15)

n.s.

Beta (13–30 Hz)

0.16 (0.13–0.22)

0.2 (0.18–0.23)

0.21 (0.17–0.26)

0.03

Median frequency

8.35 (8.17–8.92)

8.99 (8.88–9.26)

8.96 (8.54–9.29)

<0.01*