Neurophysiologic effects of transcutaneous auricular vagus nerve stimulation (taVNS) via electrical stimulation of the tragus: A concurrent taVNS/fMRI study and review. - Badran BW; Dowdle LT; Mithoefer OJ; LaBate NT; Coatsworth J; Brown JC; DeVries WH; Austelle CW; McTeague LM; George MS (Brain stimulation, 2018)