Table 3. P-values of all directions of information flow estimated by Granger causality between ROI’s at different sampling rates from 1000 bootstrap iterations.

TR = 0.1 s		FROM
		V	PPC	PreM	S	M
TO	V	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PPC	<0.001; 0.006	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PreM	<0.001; <0.001	<0.001; 0.006	N/A	1-p; 1-p	1-p; 1-p
	S	<0.001; 0.016	0.002; 0.576	0.883; 0.897	N/A	1-p; 1-p
	M	<0.001; 0.003	<0.001; 0.390	0.110; 0.861	0.904; 0.256	N/A
TR = 0.5 s		FROM
		V	PPC	PreM	S	M
TO	V	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PPC	0.027; 0.573	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PreM	0.069; 0.259	0.305; 0.618	N/A	1-p; 1-p	1-p; 1-p
	S	0.120; 0.358	0.597; 0.152	0.891; 0.416	N/A	1-p; 1-p
	M	0.076; 0.541	0.378; 0.128	0.489; 0.387	0.304; 0.470	N/A
TR = 1 s		FROM
		V	PPC	PreM	S	M
TO	V	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PPC	0.377; 0.542	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PreM	0.119; 0.648	0.339; 0.540	N/A	1-p; 1-p	1-p; 1-p
	S	0.224; 0.442	0.263; 0.324	0.551; 0.518	N/A	1-p; 1-p
	M	0.206; 0.381	0.268; 0.280	0.374; 0.419	0.402; 0.426	N/A
TR = 2 s		FROM
		V	PPC	PreM	S	M
TO	V	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PPC	0.744; 0.280	N/A	1-p; 1-p	1-p; 1-p	1-p; 1-p
	PreM	0.669; 0.806	0.463; 0.833	N/A	1-p; 1-p	1-p; 1-p
	S	0.713; 0.338	0.313; 0.610	0.636; 0.381	N/A	1-p; 1-p
	M	0.668; 0.356	0.252; 0.543	0.602; 0.396	0.389; 0.382	N/A

Each cell contains two p-values. The left p-value is for the left hemisphere (R condition) and the right p-value is for the right hemisphere (L condition). Only lower-triangular off-diagonal entries are listed. Upper-triangular off-diagonal entries can be calculated by (1–listed p-value). V: visual cortex; PCC: parietal cortex; PreM: pre-motor cortex; S: sensorimotor cortex; M: motor cortex. L: left hemisphere (R condition). R: right hemisphere (L condition).