Figure 1.
Distribution of afferents to the VTA coming from the mPOA. (a) Representative injection site of Fluorogold in the VTA (bar, 500µm). (b) Graph demonstrating that the number of mPOA-VTA efferents is higher in the rostral mPOA than in the caudal mPOA. (c) Photomicrographs of coronal sections profiling the rostro-caudal concentration of efferents in the mPOA, indicated by arrows. Scale bar, 250µm; values, mean ± SEM; * p < 0.001. Abbreviations: SN = substantia nigra; IP = interpeduncular nucleus; OX = optic chiasm; 3V = Third ventricle.