Table 4.

Two-tailed t-statistics comparing the number of anti-correlated links between the post-dose and pre-dose sections (i.e. post-dose minus pre-dose).

Eyes-closed condition
	without GSR				with GSR
	Caffeine		Control		Caffeine		Control
Threshold	t(9)	p-value	t(9)	p-value	t(9)	p-value	t(9)	p-value
0	2.98	0.02	0.24	0.81	0.00	1.00	1.20	0.26
−0.05	2.85	0.02	0.59	0.57	0.98	0.35	1.29	0.23
−0.1	3.92	0.004	0.72	0.49	1.15	0.28	1.02	0.34
−0.15	4.28	0.002	0.82	0.43	1.19	0.26	1.57	0.15
−0.2	4.55	0.001	0.93	0.37	2.03	0.07	0.88	0.40
−0.25	3.96	0.003	1.17	0.27	2.56	0.03	1.33	0.22
−0.3	4.64	0.001	0.74	0.48	2.65	0.03	1.84	0.10
Eyes-open condition
0	−0.81	0.44	−0.77	0.46	−4.52	0.002	0.41	0.69
−0.05	−1.27	0.24	−0.84	0.42	−5.76	0.0003	−0.38	0.71
−0.1	−1.36	0.21	−1.07	0.31	−3.80	0.004	−0.18	0.86
−0.15	−1.55	0.16	−0.68	0.52	−3.34	0.009	−1.18	0.27
−0.2	−1.58	0.15	−0.94	0.37	−4.27	0.002	−1.75	0.11
−0.25	−1.45	0.18	−1.06	0.32	−5.25	0.0005	−1.32	0.22
−0.3	−1.59	0.15	−0.46	0.65	−3.80	0.004	−1.70	0.12