Figure 6.

Photomicrographs showing labeled cells and fibers in transverse sections in the P. waltl caudal telencephalon showing (a) anterogradely labeled fibers and retrogradely labeled neurons at striatal levels after BDA injection into the parabrachial area; (b,c) double-labeled sections showing simultaneously the anterograde fibers and retrograde projection neurons at caudal striatal levels after a BDA injection into the parabrachial area (green) and the GABA (red; b) and NOS (red; c) expression. Scale bars = 100 μm. Abbreviations as in Figure 1.