Figure 6. Photomicrographs showing c-Fos-LI in rat cingulate cortex, thalamus, and neocortex 2 h after continuous insufflation of 1.8% halothane (group 8). (A) Cingulate cortex. (B) Thalamus (paraventricular thalamic nuclei). (C) Neocortex (parietal cortex). Scale bar = 100 micro meter.