Fluorescence in situ hybridization showing characteristic labeling patterns with the use of antisense cRNA probes for GAD67 (A), VGluT1 (B), VGluT2 (C), and VGluT3 (D) mRNAs. Inset in D shows expression of VGluT3 mRNA in putative interneurons dispersed in the hippocampus. BLA, Basolateral amygdala; Cx, cerebral cortex; Hip, hippocampus; MHb, medial habenula; Re, reticular thalamic nucleus; Th, thalamus; VMH, ventromedial hypothalamic nucleus. Scale bars, 1 mm.