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. Author manuscript; available in PMC: 2015 Nov 15.
Published in final edited form as: Neuroimage. 2014 Sep 7;102(0 2):828–837. doi: 10.1016/j.neuroimage.2014.08.059

Table 2.

Pearson’s correlations of memory scores with DTI-derived measures with significant group difference based on analysis of TBSS, volume-of-interest and the tracts between hippocampus (HP) and VM. The memory scores are the ones in serial order working memory and incidental recognition memory task.

Analysis Correlations of memory scores with diffusivity indices
DTI-derived measures Serial order working memory Incidental recognition memory
r p r p
TBSS
  Left VM FA/D 0.29/−0.93 0.64/0.025* 0.29/−0.39 0.72/0.61
  Right VM FA 0.58 0.31 −0.43 0.57
  Left TS FA/MD/Dr 0.21/0.37/0.16 0.73/0.54/0.80 0.78/−0.04/−0.30 0.22/0.96/0.71
  Left FX FA/MD/ Dr −0.10/0.02/−0.01 0.88/0.98/0.99 0.39/0.42/0.33 0.62/0.58/0.67
  Right FX FA/MD/ Dr 0.24/−0.04/−0.11 0.70/0.95/0.86 0.38/0.27/0.14 0.62/0.73/0.86
  Left OR FA/ Dr 0.16/0.20 0.80/0.74 −0.62/0.92 0.38/0.08
  Right OR FA/ Dr 0.41/0.42 0.49/0.49 0.06/0.64 0.94/0.36
Volume-of-interest
  Left VM Dr −0.33 0.58 0.21 0.80
  Left TS MD/ Dr 0.11/−0.05 0.86/0.94 0.40/−0.49 0.60/0.51
  Left FX FA/MD/ Dr −0.10/0.02/−0.01 0.88/0.98/0.99 0.64/0.16/0.11 0.36/0.84/0.89
  Right FX FA/MD/ Dr 0.24/−0.04/−0.11 0.70/0.95/0.86 0.64/0.05/−0.04 0.36/0.95/0.96
Tracts between HP and VM
  Left Tract1 FA/MD/ Dr 0.42/−0.22/−0.22 0.48/0.72/0.72 0.31/−0.12/−0.14 0.69/0.88/0.87
  Right Tract1 FA/MD/ Dr 0.30/0.21/0.09 0.62/0.73/0.89 0.35/−0.17/−0.30 0.65/0.83/0.71
  Left Tract2 Dr 0.04 0.95 0.62 0.38

In consideration of the small sample size, a significant level of *p < 0.05 without multiple comparisons correction was adopted in this study.

Abbreviation. VM: ventromedial prefrontal cortex; TS: temporal stem; FX: fornix; OR: optic radiations; Tract1: tracts from hippocampus to VM through FX; Tract2: tracts from hippocampus to VM through TS.