Fig. 1From: Mechanisms underlying antidepressant effect of transcutaneous auricular vagus nerve stimulation on CUMS model rats based on hippocampal α7nAchR/NF-κB signal pathwayExperimental procedure. AC, acclimatization; CUMS, chronic unpredictable mild stress; Hi, hippocampus; taVNS, transcutaneous auricular vagus nerve stimulation; − 21 days, 0 day, 21 days involved three behavioral testing of SPT, OFT and FSTBack to article page