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. 2014 Jun 26;9(6):e100319. doi: 10.1371/journal.pone.0100319

Table 5. P-values of all directions of information flow estimated by conditional Granger causality between ROI’s at different sampling rates from 100 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 <0.01; 0.01 N/A 1-p; 1-p 1-p; 1-p 1-p; 1-p
PreM <0.01; <0.01 <0.01; 0.01 N/A 1-p; 1-p 1-p; 1-p
S <0.01; <0.01 <0.01; 0.57 0.88; 0.89 N/A 1-p; 1-p
M <0.01; <0.01 <0.01; 0.37 0.11; 0.87 0.89; 0.26 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 0.03; 0.54 N/A 1-p; 1-p 1-p; 1-p 1-p; 1-p
PreM 0.07; 0.28 0.30; 0.62 N/A 1-p; 1-p 1-p; 1-p
S 0.10; 0.38 0.69; 0.15 0.88; 0.40 N/A 1-p; 1-p
M 0.08; 0.57 0.41; 0.13 0.49; 0.38 0.22; 0.48 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 0.37; 0.57 N/A 1-p; 1-p 1-p; 1-p 1-p; 1-p
PreM 0.13; 0.64 0.35; 0.54 N/A 1-p; 1-p 1-p; 1-p
S 0.20; 0.50 0.27; 0.32 0.56; 0.49 N/A 1-p; 1-p
M 0.22; 0.45 0.29; 0.29 0.36; 0.40 0.38; 0.43 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 0.73; 0.25 N/A 1-p; 1-p 1-p; 1-p 1-p; 1-p
PreM 0.67; 0.78 0.49; 0.84 N/A 1-p; 1-p 1-p; 1-p
S 0.70; 0.33 0.34; 0.64 0.66; 0.39 N/A 1-p; 1-p
M 0.65; 0.39 0.27; 0.56 0.58; 0.38 0.37; 0.39 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).