Differential effects of emotion categories associated with low arousal. Parameter estimates of activity (beta values and arbitrary units) are shown for significant clusters (P < 0.001) in (a) PHG obtained for the main effect of Sadness in the A−V− quadrant. The average parameters of activity (beta values and arbitrary units) are shown for each of these clusters. Error bars indicate the standard deviation across participants. (b) Right hippocampus found for the main effect of emotions in the quadrant A−V+ and (c) subgenual ACC found for the main effect of emotions in the A−V+ quadrant.