Abbreviations
NMDARs, N-methyl-D-aspartate receptors; NAc, nucleus accumbens; CSDS, chronic social defeat stress; HPLC, high performance liquid chromatography; BDNF, brain-derived neurotrophic factor; TrkB, tyrosine receptor kinase B; CREB, cAMP response element-binding protein; FST, forced swimming test; TST, tail suspension test; LTD, long-term depression; fEPSPs, field excitatory postsynaptic potential; LFS, low-frequency stimulation.