Table 6.
Genetic and environmental correlation of personality brain associations in the full HCP sample.
| Cortical thickness | ROI | Environmental correlation | Genetic correlation | Genetic contribution to phenotypic correlation |
|---|---|---|---|---|
| Agreeableness | LH Cont_PFCl_4 | ρe −0.12, p < 0.05* | ρg −0.09, p = ns | 22% |
| LH Default_PFC_9 | ρe −0.05, p = ns | ρg −0.21, p < 0.1 | 72% | |
| LH Default_PFC_11 | ρe 0.01, p = ns | ρg −0.36, p < 0.005** | 100% | |
| LH Default_PFC_13 | ρe −0.03, p = ns | ρg −0.26, p < 0.05* | 84% | |
| RH Default_PFCm_5 | ρe 0.03, p = ns | ρg −0.33, p < 0.01** | 100% | |
| Neuroticism | LH Vis_14 | ρe −0.07, p = ns | ρg −0.20, p < 0.1 | 64% |
| LH Default_PFC_9 | ρe 0.07, p = ns | ρg 0.17, p = ns | 63% | |
| RH Cont_PFCl_6 | ρe 0.03, p = ns | ρg 0.27, p < 0.05* | 82% | |
| RH Default_PFCm_5 | ρe 0.03, p = ns | ρg 0.23, p < 0.05* | 83% | |
| Openness | LH Cont_PFCl_4 | ρe −0.13, p < 0.05* | ρg −0.14, p = ns | 43% |
| RH Limbic_TempPole_1 | ρe 0.01, p = ns | ρg 0.34, p < 0.01** | 95% | |
| Surface area Neuroticism | LH SomMot_3 | ρe 0.03, p = ns | ρg −0.29, p < 0.02* | 100% |
| LH Default_PFC_3 | ρe −0.05, p = ns | ρg −0.17, p = ns | 71% | |
| LH Default_PFC_9 | ρe 0.13, p < 0.1 | ρg −0.45, p = 0.0002** | 100% | |
| LH Default_PFC_13 | ρe −0.04, p = ns | ρg −0.21, p = ns | 75% | |
| RH Default_Temp_1 | ρe −0.16, p < 0.02 | ρg 0.00, p = ns | 1% | |
| RH Default_PFCm_4 | ρe 0.01, p = ns | ρg −0.25, p < 0.02* | 100% | |
| RH Default_PFCm_5 | ρe −0.04, p = ns | ρg −0.30, p < 0.02* | 81% |
Genetic and environmental correlations are computed in the HCP sample, and exact p-values are reported.
denotes a significant genetic correlation at FDRq<0.05, corrected for the number of ROIs associated with the respective personality trait within the structural marker.
indicated an association of p < 0.05. The genetic contribution of phenotypic correlation was computed using the respective heritability of the personality trait and the local parcel as well as their genetic and phenotypic correlation.