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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: Neuroimage. 2016 Nov 15;146:90–99. doi: 10.1016/j.neuroimage.2016.11.032

Table 1.

Univariate ACE model for cortical mean diffusivity.

Standardized variance components
Region of Interest rMZ rDZ a2 95% CI c2 95% CI e2 95% CI
Global Mean 0.70 0.30 0.65 (0.19; 0.75) 0.00 (0.00; 0.42) 0.35 (0.25; 0.47)
Frontal lobe
Superior frontal gyrus 0.67 0.36 0.28 (0.00; 0.70) 0.33 (0.00; 0.65) 0.39 (0.29; 0.52)
Rostral middle frontal
gyrus
0.68 0.23 0.65 (0.25; 0.74) 0.00 (0.00; 0.36) 0.35 (0.26; 0.48)
Caudal middle frontal
gyrus
0.67 0.32 0.62 (0.14; 0.75) 0.04 (0.00; 0.47) 0.35 (0.25; 0.48)
Lateral orbitofrontal cortex 0.63 0.18 0.61 (0.28; 0.72) 0.00 (0.00; 0.27) 0.39 (0.28; 0.54)
Medial orbitofrontal cortex 0.49 0.19 0.48 (0.00; 0.61) 0.00 (0.00; 0.42) 0.52 (0.39; 0.70)
Pars opercularis 0.72 0.22 0.66 (0.28; 0.75) 0.00 (0.00; 0.35) 0.34 (0.25; 0.46)
Pars orbitalis 0.57 0.10 0.57 (0.25; 0.69) 0.00 (0.00; 0.26) 0.43 (0.31; 0.60)
Pars triangularis 0.68 0.13 0.63 (0.33; 0.73) 0.00 (0.00; 0.26) 0.37 (0.27; 0.51)
Frontal pole 0.51 0.38 0.48 (0.00; 0.69) 0.09 (0.00; 0.47) 0.43 (0.31; 0.61)
Precentral gyrus 0.59 0.27 0.55 (0.03; 0.68) 0.02 (0.00; 0.46) 0.44 (0.32; 0.59)
Paracentral lobule 0.72 0.48 0.34 (0.00; 0.75) 0.35 (0.00; 0.67) 0.31 (0.23; 0.43)
Cingulate cortex
Rostral anterior cingulate
cortex
0.53 0.17 0.47 (0.00; 0.59) 0.00 (0.00; 0.42) 0.53 (0.41; 0.69)
Caudal anterior cingulate
cortex
0.51 0.46 0.16 (0.00; 0.61) 0.34 (0.00; 0.58) 0.49 (0.36; 0.66)
Posterior cingulate cortex 0.59 0.35 0.42 (0.00; 0.66) 0.12 (0.00; 0.53) 0.45 (0.34; 0.61)
Isthmus cingulate cortex 0.51 0.13 0.47 (0.08; 0.61) 0.00 (0.00; 0.32) 0.53 (0.39; 0.70)
Parietal lobe
Superior parietal cortex 0.71 0.44 0.41 (0.01; 0.75) 0.27 (0.00; 0.61) 0.33 (0.24; 0.45)
Inferior parietal cortex 0.65 0.29 0.59 (0.09; 0.71) 0.02 (0.00; 0.46) 0.39 (0.29; 0.54)
Supramarginal gyrus 0.69 0.15 0.63 (0.33; 0.73) 0.00 (0.00; 0.27) 0.37 (0.27; 0.50)
Precuneus 0.72 0.35 0.65 (0.21; 0.77) 0.04 (0.00; 0.44) 0.31 (0.23; 0.43)
Postcentral gyrus 0.61 0.50 0.22 (0.00; 0.68) 0.38 (0.00; 0.65) 0.40 (0.29; 0.54)
Occipital lobe
Lingual gyrus 0.68 0.23 0.63 (0.26; 0.73) 0.00 (0.00; 0.32) 0.37 (0.27; 0.51)
Pericalcarine cortex 0.67 0.34 0.63 (0.18; 0.74) 0.01 (0.00; 0.41) 0.36 (0.26; 0.49)
Cuneus 0.71 0.29 0.69 (0.33; 0.77) 0.00 (0.00; 0.32) 0.31 (0.23; 0.44)
Lateral occipital cortex 0.72 0.21 0.69 (0.40; 0.78) 0.00 (0.00; 0.26) 0.31 (0.22; 0.44)
Temporal lobe
Superior temporal gyrus 0.68 0.43 0.40 (0.00; 0.73) 0.24 (0.00; 0.60) 0.36 (0.26; 0.49)
Middle temporal gyrus 0.65 0.27 0.62 (0.22; 0.72) 0.00 (0.00; 0.35) 0.38 (0.28; 0.52)
Inferior temporal gyrus 0.53 0.06 0.51 (0.12; 0.65) 0.00 (0.00; 0.32) 0.49 (0.35; 0.67)
Transverse temporal cortex 0.71 0.11 0.66 (0.43; 0.75) 0.00 (0.00; 0.19) 0.34 (0.25; 0.47)
Banks of the sup. temporal
sulcus
0.72 0.12 0.66 (0.43; 0.76) 0.00 (0.00; 0.20) 0.34 (0.24; 0.47)
Entorhinal cortex 0.42 −0.19 0.45 (0.15; 0.64) 0.00 (0.00; 0.15) 0.55 (0.36; 0.83)
Parahippocampal cortex 0.41 0.37 0.00 (0.00; 0.53) 0.39 (0.00; 0.53) 0.60 (0.45; 0.76)
Fusiform gyrus 0.48 0.21 0.31 (0.00; 0.56) 0.11 (0.00; 0.49) 0.58 (0.44; 0.75)
Temporal pole 0.42 0.34 0.40 (0.00; 0.66) 0.13 (0.00; 0.51) 0.48 (0.34; 0.69)

rMZ = correlation between monozygotic twins; rDZ = correlation between dizygotic twins; a2 = additive genetic influences; c2 = shared/common environmental influences; e2 = unique environmental influences; 95% CI = corrected 95% confidence intervals.