Table 4.

SCV_β for mental and physical mental tasks.

Channel	Mental task		Physical mental task
	Before	After	Before	After
F3-F4	17.34 ± 5.28	18.17 ± 6.37	18.14 ± 6.52	17.31 ± 5.97
C3-C4	15.16 ± 6.11	15.66 ± 7.36	16.23 ± 6.75	13.90 ± 7.02
P3-P4	16.30 ± 5.65	16.50 ± 6.67	16.25 ±6.76	12.87 ±5.48
T3-T4	3.50 ± 5.32	5.39 ± 6.96	6.11 ± 9.74	4.90 ± 5.45
T5-T6	5.18 ± 5.11	7.12 ± 8.78	7.09 ± 8.26	5.44 ± 5.63
O1-O2	13.61 ± 5.44	15.84 ± 7.48	14.95 ± 7.89	14.38 ± 5.78

The values in bold are significantly different.