Genetic and environmental correlations between white matter tracts, gray matter density and working memory measures
| Digits forward | Digits backward | Letter-number | SDRT | |||||
|---|---|---|---|---|---|---|---|---|
| ρg | ρe | ρg | ρe | ρg | ρe | ρg | ρe | |
| Anterior limb of internal capsule | 0.125 (0.451) | 0.004 (0.975) | 0.129 (0.504) | 0.006 (0.964) | 0.160 (0.426) | 0.039 (0.762) | 0.061 (0.843) | 0.041 (0.701) |
| Cingulum (cingulate bundle) | 0.166 (0.364) | 0.215 (0.086) | 0.018 (0.930) | 0.014 (0.914) | 0.222 (0.285) | 0.178 (0.178) | 0.458 (0.152) | 0.106 (0.310) |
| External capsule | 0.040 (0.794) | 0.032 (0.806) | 0.102 (0.562) | 0.047 (0.730) | 0.053 (0.775) | 0.037 (0.780) | 0.125 (0.646) | 0.007 (0.949) |
| Superior fronto-occipital fasciculus | 0.070 (0.667) | 0.123 (0.323) | 0.054 (0.770) | 0.038 (0.767) | 0.100 (0.593) | 0.047 (0.707) | 0.153 (0.580) | 0.091 (0.366) |
| Superior longitudinal fasciculus | 0.076 (0.595) | 0.055 (0.717) | 0.071 (0.666) | 0.094 (0.565) | 0.118 (0.490) | 0.023 (0.882) | 0.593 (0.023) | 0.245 (0.048) |
| Prefrontal gray matter density | 0.238 (0.103) | −0.318 (0.039) | 0.108 (0.515) | −0.153 (0.365) | 0.164 (0.333) | −0.072 (0.601) | 0.063 (0.808) | −0.056 (0.670) |
| Parietal gray matter density | −0.048 (0.759) | 0.134 (0.351) | 0.115 (0.532) | 0.268 (0.067) | −0.087 (0.701) | 0.052 (0.723) | −0.135 (0.659) | 0.077 (0.507) |
Genetic ρg (p value) and environmental ρe (p value) correlations between white matter tracts and working memory measures. Significant tests at 5% FDR are bolded.