Enhanced Early Neuronal Processing of Food Pictures in Anorexia Nervosa: A Magnetoencephalography Study

Figure 2

Group differences in neural activity. The top panel shows the mean amplitude (ft/cm) of neural activity after stimulus (collapsed across food categories) across the experimental groups. The middle panel illustrates the significance levels over time of the ANOVA main effect of group. The bottom panel illustrates the significance levels of post hoc Mann-Whitney test analyses of group differences in mean amplitude of neural activity (collapsed across food categories) shown in the top panel. Note: - - - - - - denotes the two peaks of interest: 150 and 320 milliseconds after stimulus, in which group comparisons were significant to the level (see Methods for justification of peak selection). AN-C: acute Anorexia Nervosa group, AN-R: recovered Anorexia Nervosa group, and HC: healthy control group.