Table 7.
Estimated DCM coupling parameters
| dlPFC-U⇒ | IFG⇒ | dlPFC-M⇒ | vmPFC⇒ | |
|---|---|---|---|---|
| Fixed coupling | ||||
| dlPFC-U | −1 | 0.25 (σ2 = 0.00022; Pc = 1) | 0.45 (σ2 = 0.00025; Pc = 1) | 0.29 (σ2 = 0.0003; Pc = 1) |
| IFG | 0.13 (σ2 = 0.00022; Pc = 1) | −1 | 0.3 (σ2 = 0.00024; Pc = 1) | 0.36 (σ2 = 0.0003; Pc = 1) |
| dlPFC-M | 0.22 (σ2 = 0.00024; Pc = 1) | 0.21 (σ2 = 0.00023; Pc = 1) | −1 | 0.31 (σ2 = 0.00031; Pc = 1) |
| vmPFC | 0.16 (σ2 = 0.00022; Pc = 1) | 0.31 (σ2 = 0.00022; Pc = 1) | 0.23 (σ2 = 0.00025; Pc = 1) | −1 |
| Modulation by decision | ||||
| dlPFC-U | 0.3 (σ2 = 0.00034; Pm = 1) | 0.07 (σ2 = 0.00032; Pm = 1) | 0.14 (σ2 = 0.00037; Pm = 1) | 0.04 (σ2 = 0.00038; Pm = 0.99) |
| IFG | −0.02 (σ2 = 0.00033; Pm = 0.81) | 0.58 (σ2 = 0.00031; Pm = 1) | 0.14 (σ2 = 0.00035; Pm = 1) | 0.07 (σ2 = 0.00039; Pm = 1) |
| dlPFC-M | 0.01 (σ2 = 0.00032; Pm = 0.61) | 0.09 (σ2 = 0.00031; Pm = 1) | 0.46 (σ2 = 0.00035; Pm = 1) | 0.06 (σ2 = 0.00038; Pm = 1) |
| vmPFC | −0.04 (σ2 = 0.00032; Pm = 0.98) | 0.08 (σ2 = 0.00031; Pm = 1) | 0.04 (σ2 = 0.00036; Pm = 0.98) | 0.19 (σ2 = 0.00039; Pm = 1) |
| Modulation by vmPFC | ||||
| dlPFC-U | — | 1.04 (σ2 = 0.00001; Pm = 1) | — | — |
| IFG | 0.83 (σ2 = 0.01; Pm = 1) | — | — | — |
| Modulation by dlPFC-M | ||||
| dlPFC-U | — | −0.07 (σ2 = 0.01; Pm = 0.81) | — | — |
| IFG | −0.47 (σ2 = 0.01; Pm = 1) | — | — | — |
| dlPFC-M | — | — | — | — |
| vmPFC | — | — | — | — |
| Modulation by dlPFC-U | ||||
| dlPFC-U | — | — | — | — |
| IFG | — | — | — | — |
| dlPFC-M | — | — | — | 0.9 (σ2 = 0.01; Pm = 1) |
| vmPFC | — | — | 0.41 (σ2 = 0.01; Pm = 1) | — |
| Modulation by IFG | ||||
| dlPFC-U | — | — | — | — |
| IFG | — | — | — | — |
| dlPFC-M | — | — | — | 1.54 (σ2 = 0.01; Pm = 1) |
| vmPFC | — | — | 1.22 (σ2 = 0.01; Pm = 1) | — |
Coupling flows from the region listed at the top of each column to those listed in each row.
σ2, Sample variance; Pc, probability that the absolute value of the coupling parameter is greater than zero; Pm, probability that the coupling parameter is modulated by task condition. Probabilities are rounded to two decimal places and those parameters whose probability is greater than 90% are shown in bold.