Table 1.

DCM parameter priors including the observation model, neuronal model, and experimental effects

Parameters	Prior		Interpretation
	Mean (π)	Variance (σ)
Observation model
αu	0	1/16	Exogenous white input
αs	0	1/16	Channel white noise
βu	0	1/16	Exogenous pink input
βs	0	1/16	Channel pink noise
ϴ	1	1	Lead-field gain
[Deep, super, stellate]	[0.2, 0.8, 0.2]	[1/16]	[Subpopulation contributions]
Neuronal sources
1/κ1	2 ms	1/16	Time constant (s.s.)
1/κ2	2 ms	1/16	Time constant (s.p.)
1/κ3	16 ms	1/16	Time constant (i.i.)
1/κ4	28 ms	1/16	Time constant (d.p.)
γ1	4	1/16	Intrinsic connection (s.s. to >s.s.)
γ2	4	1/16	Intrinsic connection (s.p. to >s.s.)
γ3	4	1/16	Intrinsic connection (i.i. to >s.s.)
γ4	4	1/16	Intrinsic connection (i.i. to >i.i.)
γ5	4	1/16	Intrinsic connection (s.s. to >i.i.)
γ6	2	1/16	Intrinsic connection (d.p. to >i.i.)
γ7	4	1/16	Intrinsic connection (s.p. to >s.p.)
γ8	4	1/16	Intrinsic connection (s.s. to >s.p.)
γ9	2	1/16	Intrinsic connection (i.i. to >d.p.)
γ10	1	1/16	Intrinsic connection (d.p. to >d.p.)
D	1 ms	1/16	Laminar delay
Experimental design
β1	0	1/8	Modulation of γ1
β2	0	1/8	Modulation of γ7
β3	0	1/8	Modulation of γ4
β4	0	1/8	Modulation of γ10

s.s., Spiny stellate; s.p., superficial pyramidal; i.i., inhibitory interneuron; d.p., deep pyramidal.