Table 4 Summary of cGERGM parameter estimates in the Simulation Study.

From: Statistical Modeling of the Default Mode Brain Network Reveals a Segregated Highway Structure

Statistic

Random Graph Model

Two-Stars + Triads Model

Two-Stars (Hub) Model

Est.

S.E.

Sign. Rate

Est.

S.E.

Sign. Rate

Est.

S.E.

Sign. Rate

Triads

−0.0253

0.1241

0.047

0.2757

0.2511

0.245

   

Two-Stars

0.0317

0.1870

0.047

−0.6537

0.2543

0.684

0.478

0.033

1.00

Edges

0.5033

0.0187

1.00

0.1525

0.0945

0.429

−1.858

0.025

1.00

Dispersion

−1.5941

0.0653

1.00

0.2787

0.0732

0.908

−1.309

0.079

1.00

  1. (Left) Networks were simulated with θ Two−Stars  = θ Triads  = 0 and β 0 = 0.5. (Middle) Networks were simulated with θ Two−Stars  = −0.75, θ Triads  = 0.34 and the intercept β 0 = 0.25 to reflect the Two-Stars + Triads model fitted to the DMN. (Right) Networks were simulated with θ Two−Stars  = 0.5 and the intercept β 0 = −2.00 to reflect a model that demonstrates hub usage. Values are based on 1000 simulated networks and the significance rate represents the proportion of estimates that were statistically significant at a level of 0.05.
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