Fig. 5.

Expression and receptor radioligand binding to cross sections of the rat brain. Data are shown for both mRNA distribution from in situ hybridization films and autoradiograms after labeling with radioactive ligands for each receptor. For identification of the brain areas, the following areas are marked in (A–D): 1, retrosplenial granular cortex; 2, primary somatosensory cortex; 3, entorhinal cortex; 4, CA1 area of the hippocampus; 5, dentate gyrus; 6, caudate putamen; 7, amygdala; 8, zona incerta; 9, lateral hypothalamic area; 10, arcuate nucleus; 11, dorsal lateral geniculate nucleus. Modified from Haas and Panula (2003).