Figure 2

Box-whisker plots illustrating the (A) hippocampal (top) and (B) whole amygdalar (bottom) volumes at 3T for healthy volunteers (HVs) (red) and individuals with treatment-resistant depression (TRD) (blue) at baseline, acute, and interim scans after ketamine and placebo infusions. Dots indicate volume for individual participants; the boxplot illustrates the mean and quartiles of the distributions.