Recovery from anorexia nervosa includes neural compensation for negative body image.
OBJECTIVE
To examine whether frontal lobe mediated regulation of emotion permits women to recover from anorexia nervosa (AN).


METHODS
Brain activity associated with the disruption of working memory by images of bodies was examined in women who had recovered from AN and in control women.


RESULTS
Negatively rated images were more disruptive to working memory than neutral or positively rated images in both groups; however, amygdala and fusiform activation were greater in women who had recovered from AN than in controls when viewing images of bodies during the working memory task. There were no group differences in lateral prefrontal activity. However, there was more suppression of medial prefrontal cortex activity in women who had recovered from AN in comparison to controls when negatively rated images were presented during the working memory task.


CONCLUSIONS
These results suggest that recovery from AN is not achieved by dampening an amygdala mediated emotional response to bodies, but instead by developing compensatory neural mechanisms that prevent emotional responses from disturbing cognition.
Cognition and Aging Laboratory, Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR 97219, USA.
Trisha A
TA
Pruis
Pamela K
PK
Keel
Jeri S
JS
Janowsky
D000223:Adaptation, Psychological / Q000502:physiology*; D000328:Adult; D000679:Amygdala / Q000502:physiology* / Q000503:physiopathology; D000856:Anorexia Nervosa / Q000503:physiopathology* / Q000628:therapy*; D001288:Attention / Q000502:physiology; D001828:Body Image; D001921:Brain / Q000503:physiopathology*; D004644:Emotions / Q000502:physiology*; D005260:Female; D006801:Humans; D007600:Judgment / Q000502:physiology; D008570:Memory, Short-Term / Q000502:physiology*; D008875:Middle Aged; D009415:Nerve Net / Q000503:physiopathology; D009473:Neuronal Plasticity / Q000502:physiology*; D009778:Occipital Lobe / Q000503:physiopathology; D010364:Pattern Recognition, Visual / Q000502:physiology*; D017397:Prefrontal Cortex / Q000503:physiopathology; D013702:Temporal Lobe / Q000503:physiopathology