Fig. 2.
Photomicrographs of Fos-LI in serial coronal sections taken through the central LH after intra-AcbSh injections of saline (A–D) or 100 ng of muscimol (E–H). Muscimol injections greatly increased the number of LH cells demonstrating Fos-LI, particularly in the perifornical region of the LH. SO, Supraoptic nucleus;opt, optic tract; f, fornix. Magnification, 40×.