Subgenual anterior cingulate activation to valenced emotional stimuli in major depression.
Major depression has been associated with anomalous activation in the subgenual anterior cingulate cortex, but its response to emotional stimuli is poorly understood. The primary goal of this study was to compare levels of activation in the subgenual anterior cingulate cortex of diagnosed depressed and nondepressed participants in response to happy and sad facial expressions of affect. Whereas cognitive theories of depression predict increased activation to negative stimuli, depressed participants were found to exhibit increased activation to both types of stimuli in the subgenual anterior cingulate cortex. Importantly, the loci were in different regions of the subgenual anterior cingulate cortex, suggesting that there is functional specialization in the processing of negatively and positively valenced stimuli.
Gotlib
Ian H
IH
Department of Psychology, Stanford University, Stanford, California 94305-2130, USA. gotlib@psych.stanford.edu
Sivers
Heidi
H
Gabrieli
John D E
JD
Whitfield-Gabrieli
Susan
S
Goldin
Philippe
P
Minor
Kelly L
KL
Canli
Turhan
T
D000328:Adult; D001931:Brain Mapping; D000077463:Carbamide Peroxide; D003865:Major Depressive Disorder / Q000473:pathology / Q000503:physiopathology*; D004338:Drug Combinations; D004644:Emotions / Q000502:physiology*; D005149:Facial Expression; D005260:Female; D006179:Gyrus Cinguli / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D010545:Peroxides / Q000097:blood; D014508:Urea / Q000031:analogs & derivatives / Q000097:blood
D004338:Drug Combinations; D010545:Peroxides; D000077463:Carbamide Peroxide; D014508:Urea