BDNF and Cognitive impairment: In a poststroke cognitive impairment (PSCI) study, Zheng et al. found that EA stimulation of “Yintang” (EX-HN3) and “Baihui” (GV20) improved memory in middle cerebral artery occlusion (MCAO) rats, and a mechanistic study suggested an association with activation of the BDNF/TrkB signaling pathway and restoration of NMDAR, AMPAR, and γ-aminobutyric acid type A receptor expression [61].