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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Alcohol Clin Exp Res. 2008 Dec 13;33(3):477–489. doi: 10.1111/j.1530-0277.2008.00858.x

Table 2.

Pearson Correlation Between Behavioral Congruency Effects (Selective Attention) and Regional Microstructural Integrity of the Corpus Callosum, Indexed as High Fractional Anisotropy (FA), and Low Mean Diffusivity (MD) in Alcoholics (ALC), and Controls (CTL)

Total CC
 Genu
 Body
 Splenium
FA MD FA MD FA MD FA MD
ALC 0.58* (0.58*) −0.63** (−0.63**) 0.61** (0.61*) −0.67** (−0.65**) 0.53* (0.52*) −0.55* (−0.53*) 0.56* (0.57*) −0.70** (−0.71**)
CTL 0.17 (0.24) 0.06 (0.06) 0.20 (0.28) −0.06 (−0.06) 0.16 (0.21) 0.03 (0.02) 0.13 (0.16) 0.32 (0.36)
az −2.14 1.38 −2.0 −1.77 1.37 −3.24
p ns 0.02 0.085 0.025 ns 0.04 0.085 0.001

Two-tailed;

*

p < 0.05;

**

p < 0.01.

Partial correlation controlling for education are presented in brackets.

a

We used r to zr transformation [zr = 0.5 loge (1 + r)/(1−r)] (Walker and Lev, 1953) to test whether correlations between congruency and callosal microstructure in ALC were statistically different from those observed in CTL.