Effects of heroin on brain perfusion in contrast to placebo.

BA: Brodmann area; L: left; P: perfusion; R: right; WM: white matter;*: p≤0.05;***: p≤0.001.Each coordinate triple is a peak area of contrast intensity in one of the two significant clusters and refers to a specific area defined in the atlas of Talairach & Tournoux (1988).