Table 1.

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

ParametersPriorInterpretation
Mean (π)Variance (σ)
Observation model
    αu01/16Exogenous white input
    αs01/16Channel white noise
    βu01/16Exogenous pink input
    βs01/16Channel pink noise
    ϴ11Lead-field gain
    [Deep, super, stellate][0.2, 0.8, 0.2][1/16][Subpopulation contributions]
Neuronal sources
    1/κ12 ms1/16Time constant (s.s.)
    1/κ22 ms1/16Time constant (s.p.)
    1/κ316 ms1/16Time constant (i.i.)
    1/κ428 ms1/16Time constant (d.p.)
    γ141/16Intrinsic connection (s.s. to >s.s.)
    γ241/16Intrinsic connection (s.p. to >s.s.)
    γ341/16Intrinsic connection (i.i. to >s.s.)
    γ441/16Intrinsic connection (i.i. to >i.i.)
    γ541/16Intrinsic connection (s.s. to >i.i.)
    γ621/16Intrinsic connection (d.p. to >i.i.)
    γ741/16Intrinsic connection (s.p. to >s.p.)
    γ841/16Intrinsic connection (s.s. to >s.p.)
    γ921/16Intrinsic connection (i.i. to >d.p.)
    γ1011/16Intrinsic connection (d.p. to >d.p.)
    D1 ms1/16Laminar delay
Experimental design
    β101/8Modulation of γ1
    β201/8Modulation of γ7
    β301/8Modulation of γ4
    β401/8Modulation of γ10
  • s.s., Spiny stellate; s.p., superficial pyramidal; i.i., inhibitory interneuron; d.p., deep pyramidal.