Table 5.
Model fits and parametersa
| Parameters | Models |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 12ϕ | 9ϕ | 6ϕ0 | 3ϕ0 | ϕ0FF, ϕ0NH | ϕ0FFG, ϕ0FFL,ϕ0NH | ϕ+1H, ϕ-1H | 3ϕ, 3ε | 3ϕ, εFF, εNH | 3ϕ, ε0FF, ε0NH | |
| Negative LLE | 110.8 (7.8) | 113.6 (7.8) | 113.9 (7.8) | 117.8 (7.8) | 118.7 (7.8) | 117.8 (7.7) | 117.3 (7.7) | 117.7(7.8) | 118.5(7.8) | 118.6 (7.8) |
| BIC | 303.9 (15.6) | 291.9 (15.6) | 286.8 (15.5) | 276.9 (15.5) | 272.8 (15.6) | 276.8 (15.5) | 275.9(15.5) | 282.4 (15.6) | 278.3 (15.5) | 278.5 (15.5) |
| α | 0.22 (0.04) | 0.21 (0.04) | 0.25 (0.04) | 0.23 (0.04) | 0.21 (0.03) | 0.24 (0.04) | 0.23 (0.04) | 0.23 (0.04) | 0.24 (0.04) | 0.24 (0.04) |
| β | 0.07 (0.01) | 0.07 (0.02) | 0.10 (0.02) | 0.13 (0.02) | 0.12 (0.01) | 0.12 (0.02) | 0.10 (0.02) | 0.19 (0.04) | 0.19 (0.03) | 0.14 (0.03) |
| ϕ−1 | −0.25 (0.06) | −0.27 (0.07) | −0.23 (0.06) | −0.21 (0.06) | −0.77 (0.05) | −0.78 (0.05) | −0.26 (0.07) | |||
| ϕ0 | 0.21 (0.06) | 0.05 (0.08) | 0.03 (0.08) | 0.26 (0.12) | ||||||
| ϕ+1 | 0.70 (0.06) | 0.81 (0.06) | 0.87 (0.04) | 0.76 (0.07) | 0.80 (0.06) | 0.74 (0.06) | 0.82 (0.06) | |||
| ϕ0NH | 0.37 (0.06) | |||||||||
| ϕ-1FFL | −0.40 (0.08) | −0.23 (0.07) | ||||||||
| ϕ-1NL | −0.25 (0.08) | −0.15 (0.06) | ||||||||
| ϕ-1HL | −0.26 (0.08) | −0.25 (0.07) | −0.25 (0.08) | |||||||
| ϕ0FFL | 0.15 (0.03) | 0.21 (0.05) | 0.27 (0.07) | |||||||
| ϕ0NL | 0.20 (0.06) | 0.26 (0.06) | ||||||||
| ϕ0HL | 0.16 (0.07) | 0.22 (0.05) | ||||||||
| ϕ+1FFG | 0.59 (0.06) | 0.50 (0.06) | ||||||||
| ϕ+1NG | 0.69 (0.06) | 0.59 (0.07) | ||||||||
| ϕ+1HG | 0.62 (0.06) | 0.53 (0.07) | 0.71 (0.07) | |||||||
| ϕ0FFG | 0.08 (0.09) | 0.15 (0.09) | 0.14 (0.12) | |||||||
| ϕ0NG | 0.10 (0.09) | 0.14 (0.09) | ||||||||
| ϕ0HG | 0.26 (0.08) | 0.30 (0.09) | ||||||||
| ϕ0FF | 0.09 (0.05) | 0.29 (0.07) | 0.35 (0.06) | |||||||
| ϕ0N | 0.15 (0.04) | 0.33 (0.06) | 0.29 (0.06) | |||||||
| ϕ0H | 0.14 (0.05) | 0.32 (0.07) | ||||||||
| ϕ-1FF,NL | −0.18 (0.07) | |||||||||
| ϕ+1FF,NL | 0.59 (0.07) | |||||||||
| εFF | 0.40 (0.09) | 0.45 (0.06) | ||||||||
| εN | 0.48 (0.08) | |||||||||
| εH | 0.44 (0.09) | |||||||||
| εNH | 0.49 (0.06) | |||||||||
| ε0FF | 0.04 (0.12) | |||||||||
| ε0NH | 0.07 (0.11) | |||||||||
aData are mean (SEM). LLE, log-likelihood estimate; α, learning rate. β determines the trade-off between exploration and exploitation. ϕX is the subjective value for feedback combination X. For example, ϕ+1 is the subjective value for −1₪ feedback, ϕ+1 is the subjective value for +1₪ feedback, ϕ0FF is the subjective value for the feedback combining 0₪ and fearful faces, and ϕ0NH is the subjective value for 0₪ + happy or fearful face. εX is the bias added for feedback combination X. For example, ε0FF is the bias term for neutral 0₪ feedback presented together with fearful faces, and εH is the bias term for happy faces.