Figure 1. Low (A) and high (B) magnification of the microphotographs illustrating single PRV152 (green), single H129 (red), and double PRV152+H129 (arrows) immunolabeling in the RPa and ROb following viral injections into IBAT. Gi, Gigantocellular reticular nucleus; py, pyramidal tract. n = 5. Low (C) and high (D) magnification of the microphotographs illustrating single PRV152 (green), single H129 (red), and double PRV152+H129 (arrows) immunolabeling in the PAG following viral injections into IBAT. 3N, Oculomotor nucleus; Aq, aqueduct; DpMe, deep mesencephalic nucleus; mlf, medial longitudinal fasciculus. Low (E) and high (F) magnification of the microphotographs illustrating single PRV152 (green), single H129 (red), and double PRV152+H129 (arrows) immunolabeling in the DM following viral injections into IBAT. 3V, Third ventricle. Low (G) and high (H) magnification of the microphotographs illustrating single PRV152 (green), single H129 (red), and double PRV152+H129 (arrows) immunolabeling in the LH following viral injections into IBAT. 3V, Third ventricle; TC, tuber cinereum area. Low (I) and high (J) magnification of the microphotographs illustrating single PRV152 (green), single H129 (red), and double PRV152+H129 (arrows) immunolabeling in the PVH following viral injections into IBAT. AHP, Anterior hypothalamic area, posterior part; opt; optic tract. Low (K) and high (L) magnification of the microphotographs illustrating single PRV152 (green), single H129 (red), and double PRV152+H129 (arrows) immunolabeling in the MPA following viral injections into IBAT. aca, Anterior commissure. Scale bars: A, C, E, G, I, K, 200 μm; B, D, F, H, J, L, 50 μm.