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. Author manuscript; available in PMC: 2022 Sep 23.
Published in final edited form as: Neuroimage. 2022 Jan 17;249:118919. doi: 10.1016/j.neuroimage.2022.118919

Table 1.

M-SGM parameter values, initial guesses, and bounds for parameter estimation.

Name Symbol Initial value 1 Initial value 2 Initial value 3 Lower/upper bound for optimization
Excitatory time constant τ e 0.012 s 0.018 s 0.006 s [0.005 s, 0.02 s]
Inhibitory time constant τ i 0.005 s 0.01 s 0.018 s [0.005 s, 0.02 s]
Long-range connectivity coupling constant α 1 0.5 0.1 [0.1, 1]
Transmission velocity υ 5 m/s 10 m/s 18 m/s [5 m/s, 20 m/s]
Alternating population gain g ei 4 2 1 [0.5, 5]
Inhibitory gain g ii 1 2 4 [0.5, 5]
Graph time constant τ G 0.006 s 0.01 s 0.018 s [0.005 s, 0.02 s]
Excitatory gain g ee n/a n/a n/a n/a