TABLE 6.

The results of paired t-test for average alpha power before and after each regional condition for healthy subjects.

Hemisphere	Region	Conditions	Paired differences
			Mean±SD	SE mean	95% confidence interval of the difference
					Lower	Upper	P
Left	Occipital	Before–after	−2.54 ± 0.33	0.08	–2.71	–2.36	1.08×10− 15
	Parietal	Before–after	−2.35 ± 0.27	0.06	–2.49	–2.21	1.25×10− 16
	Central	Before–after	−2.06 ± 0.28	0.06	–2.21	–1.92	1.51×10− 15
	Frontal	Before–after	−2.29 ± 0.26	0.06	–2.43	–2.15	1.36×10− 16
	Temporal	Before–after	−2.48 ± 0.35	0.08	–2.66	–2.29	3.53×10− 15
Right	Occipital	Before–after	−0.01 ± 0.001	0.0003	–0.02	–0.01	4.07×10− 20
	Parietal	Before–after	−1.32 ± 0.09	0.02	–1.37	–1.27	7.60×10− 20
	Central	Before–after	−2.22 ± 0.34	0.08	–2.39	–2.04	9.19×10− 15
	Frontal	Before–after	−2.30 ± 0.31	0.07	–2.47	–2.14	1.86×10− 15
	Temporal	Before–after	−3.04 ± 0.39	0.09	–3.24	–2.83	5.81×10− 16