Left, representative example of CeA imaged by smFISH for OR (Oprm1) (white), Sst (green) and Prkcd (red). Right, quantification of Oprm1-positive neurons among the Sst + and Prkcd + populations. Data are mean ± s.e.m. (n = 7 mice). Two-sided MannWhitney test, *** P = 0.0006. Scale bar, 20 m.
