Table 2.
Unstandardized parameter estimates and standard errors of social brain regions predicting friendship quality at T3 controlling for friendship quality at T1a
| Friendship quality T3b | |||
|---|---|---|---|
| Predictor | Parameter | SE | |
| mPFC surface area (mm2) | Intercept | 0.07* | 0.03 |
| LS | −1.50** | 0.49 | |
| QS | −6.10** | 1.82 | |
| mPFC thickness (mm) | Intercept | 0.15* | 0.06 |
| LS | 0.48 | 0.96 | |
| QS | 1.63 | 3.64 | |
| pSTS surface area (mm2) | Intercept | −0.01 | 0.01 |
| LS | 0.02 | 0.04 | |
| QS | 0.07 | 0.19 | |
| pSTS thickness (mm) | Intercept | −0.00 | 0.03 |
| LS | −0.04 | 0.15 | |
| QS | Na | Na | |
| TPJ surface area (mm2) | Intercept | −0.00 | 0.01 |
| LS | 0.01 | 0.03 | |
| QS | 0.06 | 0.08 | |
| TPJ thickness (mm) | Intercept | −0.11*** | 0.03 |
| LS | −0.11 | 0.10 | |
| QS | Na | Na | |
| Prec. surface area (mm2) | Intercept | 0.05 | 0.06 |
| LS | 0.15 | 0.47 | |
| QS | Na | Na | |
| Prec. thickness (mm) | Intercept | 0.05 | 0.03 |
| LS | −0.01 | 0.13 | |
| QS | Na | Na | |
Na = Due to the non-significant variance between persons in the quadratic slope parameters, these models did not converge. We therefore fixed the quadratic slope variance to zero in these models. mPFC = medial prefrontal cortex; pSTS = posterior superior temporal sulcus; TPJ = temporal parietal junction; Prec. = Precuneus.
a
See online Supplementary material S3 for the exact P-values.
b
We controlled for T1 friendship quality.
*
P < 0.05.
**
P < 0.01.
***
P < 0.001.