Table 3.

Power spectrum analysis of EEG.

	Delta			Theta			Alpha			Beta 1			Beta 2
	t0	t1	P	t0	t1	P	t0	t1	P	t0	t1	P	t0	t1	P
Absolute power (μV2)
Median	67,145	85,195	0,42	53,5	79,395	0,99	91,52	70,635	0,86	16,125	15,61	0,47	4,165	2,92	0,47
Mean	73,0263	89,97		113,5075	112,9513		113,3288	105,4775		21,1188	17,4675		5,6913	4,3488
S.E.M.	11,4714	17,2173		45,4567	34,8912		30,1147	34,9935		4,2976	2,4071		1,4159	1,1695
Relative power
Median	25,31	28,68	0,61	20,15	26,995	0,81	31,595	28,37	0,82	7,075	5,96	0,49	1,415	1,07	0,45
Mean	26,0737	29,2212		28,2462	30,2275		33,6137	31,845		7,9887	6,3487		2,4275	1,6562
S.E.M.	4,2267	4,3531		7,0544	4,6986		5,388	5,1308		2,08	1,0074		0,8032	0,5687
Mean frequency (Hz)
Median	1,59	1,645	0,99	6,22	6,365	0,74	9,12	9,07	0,73	14,13	13,955	0,12	19,9	19,93	0,99
Mean	1,61	1,6113		6,2087	6,2763		9,3	9,2113		14,1525	13,9425		20,0525	20,0525
S.E.M.	0,0582	0,0826		0,1541	0,1204		0,18	0,1813		0,0999	0,0816		0,1304	0,1237