Expression of new regional markers in the brain visualized by in situ hybridization. (A) A probe against proenkephalin messenger (left) was used as a positive control. A mutated proenkephalin probe with preserved thermodynamic characteristics (right) provided a negative control. (B–H) In situ hybridizations to coronal (left) and sagittal (right) sections are shown for StM3 (B), StM6 (C), StM23 (D), AcM7 (E), CxM3 (F), CxM11 (G), and CxM20 (H). (Ac) Nucleus accumbens; (Cb) cerebellum; (Cg) cingulate cortex; (Cx) cortex; (Hp) hippocampus; (Ot) olfactory tubercles; (St) striatum; (Th) thalamus.
