Table 6.

Bivariate correlations between modalities in marijuana users (MJ) and healthy controls (CON)

CONMJ
VolumeShapeGMdVolumeShapeGMd
R accumbens
    Volume
        r10.4860.42910.1160.532
        p00.030*0.05900.6280.017*
    Shape
        r0.48610.3530.1161−0.011
        p0.030*00.1260.6280−0.33
    GMd
        r0.4290.35310.532−0.0111
        p0.0590.12600.017*0.9640
R amygdala
    Volume
        r10.169−0.24410.2530.115
        p00.4760.29900.2820.630
    Shape
        r0.1691−0.0370.25310.445
        p0.47600.8760.28200.049*
    GMd
        r−0.244−0.03710.1150.4451
        p0.2990.87600.6300.049*0
L accumbens
    Volume
        r10.3580.6881−0.1730.235
        p00.1210.001**00.4660.320
    Shape
        r0.35810.459−0.1731−0.077
        p0.12100.042*0.46600.748
    GMd
        r0.6880.45910.235−0.0771
        p0.001**0.042*00.3200.7480
L amygdala
    Volume
        r10.7310.08510.1340.021
        p0<0.001**0.72200.5730.929
    Shape
        r0.73110.060.1341−0.179
        p<0.001**00.8010.57300.449
    GMd
        r0.0850.0610.021−0.1791
        p0.7220.80100.9290.4490
  • p < 0.05 uncorrected are bolded. Please note, after correcting for multiple comparisons (p < 0.002), that only the left accumbens correlation between volume and gray matter density (GMd) and the left amygdala correlations between volume and shape were significant in controls.

  • *p < 0.05;

  • **p < 0.01.