fMRI revealed reduced amygdala activation after Nx4 in mildly to moderately stressed healthy volunteers in a randomized, placebo-controlled, cross-over trial - Herrmann, Luisa; Vicheva, Petya; Kasties, Vanessa; Danyeli, Lena; Szycik, Gregor; Denzel, Dominik; Fan, Yan; Meer, Johan Van der; Vester, Johannes C.; Eskoetter, Herbert; Schultz, Myron; Walter, Martin (Scientific reports, 2020)