The nucleus accumbens (Fig. 3A) exhibited numerous fascicles of labelled fibers that followed a diagonal trajectory across the nucleus from dorsomedial to ventrolateral. Fine and medium caliber individual labelled fibers branched profusely, exhibiting numerous boutons along their lengths. Collator note: Fig. 3A corresponds to Swanson Atlas Levels 14-15 (lot as a fiducial point). The labeled fibers and terminal fields appear to extend into the fundus of striatum, but seem to avoid the SI (notice the specific shape of the unlabeled tissue, ventral to ACb and dorsal to OT), at least at this level.