Fig. 1

Experimental 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 FST
Experimental 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 FST