Illustration of the group-level difference of the intrinsic hippocampus
functional network between the HD and the CN groups. The bright color illustrates brain
regions with higher connectivity strength in the HD group while the blue color indicates
lower connectivity strength, compared to the CN group. Significance level of this
group-level difference was set at threshold p < 0.05, and
p value of each voxel was obtained via a voxel-wise analysis of
covariance (ANCOVA) with age, years of education and grey matter volume of each individual
as covariance of non-interests. The results were corrected for multiple comparisons
(3dClustSim, AFNI, α=0.05, p<0.05,
cluster size > 2630mm3).
Abbreviations: DLPFC, dorsal lateral prefrontal cortex; Amy, amygdala; aTP,
anterior temporal pole; PCC, posterior cingulate cortex; FFA, fusiform face area; DMPFC,
dorsal medial prefrontal cortex; AG, angular gyrus; TPJ, temporal-parietal junction; dACC,
dorsal anterior cingulate cortex; CN, control non-drug users; HD, heroin dependent
subjects.