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. 2018 Jul 15;175:340–353. doi: 10.1016/j.neuroimage.2018.03.074

Table 1.

Specifications of the simulated BOLD-fMRI data. Each of the simulations contain a simulated 5-node networks for 50 simulated subjects.

Simulation Name Number of nodes Neural lag Dynamic network strengths Duration TR Noise HRF lag variability (s)
Sim1 5 50 ms No 10 min. 3 s 1.0% ±0.5a
Sim22 5 50 ms Yes 10 min. 3 s 0.1% ±0.5a
Offset <0.4 s 5 50 ms Yes 10 min. 2 s 0.1% ±0.3a
Offset 0.4 s 5 50 ms Yes 10 min. 2 s 0.1% +0.21/-0.20b
Offset 0.8 s 5 50 ms Yes 10 min. 2 s 0.1% +0.48/-0.35b
Offset 1.1 s 5 50 ms Yes 10 min. 2 s 0.1% +0.69/-0.46b
Offset 1.4 s 5 50 ms Yes 10 min. 2 s 0.1% +0.85/-0.54b
Offset 1.7 s 5 50 ms Yes 10 min. 2 s 0.1% +1.04/-0.58b
Offset 1.9 s 5 50 ms Yes 10 min. 2 s 0.1% +1.24/-0.59b
60 min. 5 50 ms Yes 60 min. 2 s 0.1% ±0.3a
8-nodes ST 8 500 ms No 10 min. 2 s 0.1% ±0.5a
8-nodes NS 8 500 ms Yes 10 min. 2 s 0.1% ±0.5a
a

standard deviation of HRF peak.

b

average increase (node 1 and 4)/average decrease (node 4 and 5) of the hemodynamic delay.