Table 3.

Optimized DCM connectivity parameters

Parameter name	Prior mean	Prior (log) variance	Posterior mean	Posterior variance	Description
A{1}(2,1)	0	1/16	−1.0919	0.0283	Ascending connection from AC to IF (SP to SS)
A{2}(2,1)	0	1/16	−0.0901	0.0553	Ascending connection from AC to IF (SP to DP)
A{3}(1,2)	0	1/16	−0.0877	0.0341	Descending connection from IF to AC (DP to SP)
A{4}(1,2)	0	1/16	−0.3759	0.0527	Descending connection from IF to AC (DP to II)
G(1,:)	−1.39; −2.02	1/8; 1/8	−1.3455; 0.2480	0.0568; 0.0157	Intrinsic connections in AC (SP gain; II gain)
G(2,:)	−1.39; −2.02	1/8; 1/8	−1.1852; −2.2009	0.0498; 0.0575	Intrinsic connections in IF (SP gain; II gain)
B{1}(1,1)	0	1/8	−0.1324	0.0013	Modulation of SP gain in AC by regularity
B{1}(2,2)	0	1/8	0.0624	0.0001	Modulation of SP gain in IF by regularity
B{2}(1,1)	0	1/8	0.0001	0	Modulation of SP gain in AC by alphabet size
B{2}(2,2)	0	1/8	−0.0437	0.0001	Modulation of SP gain in IF by alphabet size

The posterior means were used as priors while inverting the initial time window in the Bayesian belief updating analysis.