FIGURE 4. Context Effects in Female Adolescents With Bulimia Nervosa Relative to Age-Matched Female Healthy Comparison Subjects^a.

^a Posterior probability maps depict the group average brain activity associated with the processing and resolution of cognitive interference. Postcongruent interference=activation contrast between incongruent and congruent stimuli in trial following a congruent trial; Postincongruent interference=activation contrast between incongruent and congruent stimuli in trial following an incongruent trial. Column A shows group-by-stimulus (congruent versus incongruent) interactions and main effects of stimulus following congruent trials in healthy comparison subjects (column B) and bulimia nervosa participants (column C). Column D shows group-by-stimulus interactions and main effects of stimulus following incongruent trials in healthy comparison subjects (column E) and bulimia nervosa participants (column F). Increases in signal during incongruent relative to congruent trials are shown in red; decreases are shown in blue (columns A–F). Abbreviations: BN=bulimia nervosa; DLPFC=dorsolateral prefrontal cortex; HC=healthy comparison; IFG=inferior frontal gyrus; MFG=medial frontal gyrus; PCC=posterior cingulate cortex; Put=putamen; SFG=superior frontal gyrus.