Figure 2.
Representative photomicrographs of NeuN immunoperoxidase-labeled tissue sections from one crossed sham-lesioned rat (A,C) and one ipsilateral IBO-lesioned rat (B,D). Two small arrows point out injection needle tracts in the sham-lesioned rat (A: algBST target site; C: CEA target site), although there is no visible loss of NeuN labeling. Conversely, the IBO-lesioned rat displays a restricted loss of NeuN immunolabeling within the dorsal and ventral algBST (B) and the CEA (D). The algBST lesion site depicted in panel B extends partially into the subjacent LPO, while the CEA lesion site depicted in panel D extends partially into the closely adjacent BLA. Scale bar in D applies also to A-C. Abbreviations not defined in manuscript: 3, third ventricle; ac, anterior commissure; BMA, basomedial amygdala; CP, caudate putamen; EP, endopiriform nucleus; fx, fornix; int, internal capsule; LA, lateral amygdala; LPO, lateral preoptic area; LS, lateral septum; MEA, medial amygdala; MPN, medial preoptic nucleus; oc, optic chiasm; ot, optic tract; st, stria terminalis.