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Reduced BOLD reactivity to positive, negative, and neutral stimuli in the bilateral amygdala and hippocampus (extracted using AAL MNI ROI library and Marsbar SPM8 ROI toolbox). Bars indicate task‐specific %‐BOLD signal changes (positive, negative, and neutral) for the baseline (green) and ketamine (blue) session (paired t test, n = 23, error bars: ±SEM). [Color figure can be viewed in the online issue, which is available at http://wileyonlinelibrary.com.]
