Fos immunoreactive cells were mainly located in the dorsal raphe nucleus (DR),nucleus raphe magnus (NRM), locus coeruleus (LC), the ventrolateral of periaqueductal gray (vlPAG), hypothalamic paraventricular nucleus (PVN).

• Fos阳性细胞主要分布于中缝背核 (DR)、中缝大核 (NRM )、蓝斑 (LC)、中脑导水管周围灰质腹外侧 (vlPAG)和下丘脑室旁核。