Figure 1.

Representative schematic illustration of the microdialysis probe location for drug application into the CeA and electrode positions within RVM. Coronal brain slices containing the microdialysis probes and recording sites were processed after the experiment for histological analysis. The numbers above the illustration show the distance from bregma (Paxinos and Watson, 1986). The probe scheme is illustrated in A. The stripped squares indicate probe tips. Triangles indicate electrode tips in the RVM (B); in particular, white triangles represent ON cells and striped, OFF cells with overlapping tip positions indicated with a single symbol. CeM, CeL, CeLC refer to medial, lateral, and laterocapsular divisions of the central nucleus of the amygdala, respectively. RMn, RGcn, and RGcnα refer to nucleus raphe magnus, nucleus reticularis paragigantocellularis, and nucleus reticularis gigantocellularis pars α, respectively.