Fig. 3.

Graphs of the estimated path weight values versus modeled path weight values for the path from Region 1 to Region 2 for each pairing of computational method and data modeling technique for each TR (TR= 2 s: solid; TR=1 s: open). Figure a shows the result from SEM; Figure b, autoregressive analysis; Figure c, Granger causality; and Figure d, dynamic causal modeling. Task-related variance is represented by blue squares; steady-state task performance, green circles; and trimmed time series, red triangles. In all cases, reducing the TR from 2 s to 1 s does not significantly change the value of the estimated path weights. Error bars indicate the standard error at 99 %