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1.  Functional Dissociation of the Frontoinsular and Anterior Cingulate Cortices in Empathy for Pain 
The frontoinsular cortex (FI) and the anterior cingulate cortex (ACC) are known to be involved in empathy for others’ pain. However, the functional roles of FI and ACC in empathetic responses have not yet been clearly dissociated in previous studies. In this study, participants viewed color photographs depicting human body parts (hands or feet) in painful or non-painful situations and performed either pain judgment (painful/non-painful) or laterality judgment (left/right) of the body parts. We found that activation of FI, rather than ACC, showed significant increase for painful compared to non-painful images, regardless of the task requirement. These findings suggest a clear functional dissociation between FI and ACC in which FI is more domain-specific than ACC in processing of empathy for pain.
doi:10.1523/JNEUROSCI.4844-09.2010
PMCID: PMC2845539  PMID: 20220007
empathy; fMRI; insula; anterior cingulate cortex; pain; Emotion

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