TABLE 2.

The average power variance analysis results of the two hemispheres, five regions, and two conditions in the alpha, theta, and gamma bands for healthy subjects before and after the experiment.

Frequency band	Condition main effect	Condition × region interaction effect	Condition × hemisphere interaction effect	Condition × region × hemisphere interaction effect
Alpha	F(1,338) = 9.93 P = 0.0017	F(4,339) = 37.97 P = 5.33×10− 26	F(1,339) = 50.00 P = 9.69×10− 12	F(4,339) = 48.24 P = 9.89×10− 32
Theta	F(1,338) = 9.78 P = 0.0019	F(4,339) = 43.24 P = 4.25×10− 29	F(1,339) = 56.34 P = 6.08×10− 13	F(4,339) = 18.42 P = 6.86×10− 25
Gamma	F(1,338) = 77.13 P = 8.13× 10− 17	F(4,339) = 41.26 P = 6.95×10− 28	F(1,339) = 113.49 P = 6.95×10− 23	F(4,339) = 36.62 P = 3.31×10− 25

Significant (P < 0.0017).