Design and Evaluation of Photo-Induced Biofeedback Fabric for the Enhancement in Sleeping Sense

Table 2

Analysis of brain wave differences between resumed stage (RS) and stimulated stage (SS) in phases of 𝑓₁, 𝑓₂, and 𝑓₃ for all samples by t-test.

Sample	𝑓1		M	SD	𝑡	𝑃	𝑓2		M	SD	𝑡	𝑃	𝑓3		M	SD	𝑡	𝑃
Sample 1	B1	RS	4.99	2.80	2.637	.110	B1	RS	5.19	2.73	2.853	.007	B1	RS	4.76	2.94	2.175	.035
		SS	3.68	1.59				SS	3.56	1.50				SS	3.41	1.71
	B2	RS	3.90	1.36	−3.37	.737	B2	RS	4.14	1.31	.520	.605	B2	RS	3.98	1.45	−4.520	.653
		SS	4.03	1.52				SS	3.95	1.41				SS	4.06	1.47
	B3	RS	3.52	1.42	−3.189	.003	B3	RS	3.69	1.64	−2.502	.015	B3	RS	3.29	1.64	−2.765	.008
		SS	5.30	2.69				SS	4.92	2.13				SS	4.67	2.18
	B4	RS	6.36	3.50	−4.664	.000	B4	RS	7.37	4.23	−3.830	.000	B4	RS	6.21	3.69	−3.993	.000
		SS	14.11	8.40				SS	12.68	6.30				SS	11.58	6.37
Sample 2	B1	RS	6.00	2.32	4.039	.000	B1	RS	6.09	2.28	4.651	.000	B1	RS	5.93	2.33	4.372	.000
		SS	4.12	1.06				SS	3.97	.99				SS	3.91	.97
	B2	RS	4.13	.86	−1.241	.219	B2	RS	4.23	1.01	−.062	.951	B2	RS	4.38	1.15	.377	.708
		SS	4.47	1.23				SS	4.25	1.02				SS	4.26	1.26
	B3	RS	4.08	1.04	−3.498	.001	B3	RS	4.30	1.16	−2.765	.008	B3	RS	4.16	1.14	−3.793	.000
		SS	5.64	2.20				SS	5.47	1.99				SS	5.79	2.05
	B4	RS	7.21	3.19	−5.369	.000	B4	RS	8.61	4.98	−3.754	.000	B4	RS	7.88	4.27	−4.814	.000
		SS	15.01	7.28				SS	14.45	6.91				SS	14.80	6.62
Sample 3	B1	RS	5.93	2.26	.429	.669	B1	RS	5.89	2.31	4.140	.000	B1	RS	5.65	2.28	3.789	.000
		SS	5.33	2.30				SS	3.95	1.09				SS	3.82	1.34
	B2	RS	4.52	1.02	.830	.410	B2	RS	4.39	1.10	.135	.893	B2	RS	4.27	1.08	.085	.932
		SS	4.29	1.08				SS	4.35	1.16				SS	4.25	1.26
	B3	RS	4.29	1.01	−3.208	.003	B3	RS	4.30	1.14	−2.847	.007	B3	RS	4.49	2.06	−1.481	.144
		SS	5.65	2.07				SS	5.64	2.31				SS	5.33	2.34
	B4	RS	6.89	2.62	−4.897	.000	B4	RS	7.76	3.50	−4.228	.000	B4	RS	7.79	2.51	−3.728	.001
		SS	14.87	8.26				SS	14.69	8.26				SS	12.77	6.86