Activation of anterior paralimbic structures during guilt-related script-driven imagery.
BACKGROUND
Several recent neuroimaging studies have examined the neuroanatomical correlates of normal emotional states, such as happiness, sadness, fear, anger, anxiety, and disgust; however, no previous study has examined the emotional state of guilt.


METHODS
In the current study, we used positron emission tomography and the script-driven imagery paradigm to study regional cerebral blood flow (rCBF) during the transient emotional experience of guilt in eight healthy male participants. In the Guilt condition, participants recalled and imagined participating in a personal event involving the most guilt they had ever experienced. In the Neutral condition, participants recalled and imagined participating in an emotionally neutral personal event.


RESULTS
In the Guilt versus Neutral comparison, rCBF increases occurred in anterior paralimbic regions of the brain: bilateral anterior temporal poles, anterior cingulate gyrus, and left anterior insular cortex/inferior frontal gyrus.


CONCLUSIONS
These results, along with those of previous studies, are consistent with the notion that anterior paralimbic regions of the brain mediate negative emotional states in healthy individuals.
Shin
L M
LM
Department of Psychology, Tufts University, Medford, Massachusetts 02155, USA.
Dougherty
D D
DD
Orr
S P
SP
Pitman
R K
RK
Lasko
M
M
Macklin
M L
ML
Alpert
N M
NM
Fischman
A J
AJ
Rauch
S L
SL
D000328:Adult; D000818:Animals; D002540:Cerebral Cortex / Q000098:blood supply / Q000000981:diagnostic imaging / Q000502:physiology*; D002560:Cerebrovascular Circulation / Q000502:physiology; D004644:Emotions / Q000502:physiology; D006167:Guilt; D006179:Gyrus Cinguli / Q000502:physiology; D006801:Humans; D007092:Imagination; D008297:Male; D012016:Reference Values; D014055:Tomography, Emission-Computed