619650.fig.004a
(a)
619650.fig.004b
(b)
619650.fig.004c
(c)
Figure 4: Co-localization of Fos and 5-HT in the nucleus raphe magnus. (a) The 5-HT-immunoreactive neurons; (b) Fos-immunoreactive profiles; (c) Merged graphs of (a) and (b). Arrows indicate double-labeled 5-HT/Fos neurons (yellow). Arrow heads point to single-labeled neurons.