Body Massage Performance Investigation by Brain Activity Analysis

Table 3

EEG alpha asymmetry index based on difference power between F3 and F4 channel. ANOVA analysis of seven stages is also estimated. Negative average asymmetry index at each stage is marked in bold.

Method	PRE	D1	D2	D3	D4	P3	P6	𝑃-value
Hand
Mean	−0.011	0.002	0.003	0.019	0.001	−0.001	0.005	0.078
S.D	0.088	0.085	0.081	0.069	0.070	0.071	0.066
Mechanical
Mean	0.001	0.005	−0.009	0.003	−0.006	0.010	0.015	0.062
S.D	0.035	0.033	0.039	0.040	0.045	0.038	0.034