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A painful experience affecting many children is social exclusion. The current study is a follow-up study, investigating change in neural activity during social exclusion as a function of peer preference. Peer preference was defined as the degree to which children are preferred by their peers and measured using peer nominations in class during four consecutive years for 34 boys. Neural activity was assessed twice with a one-year interval, using functional MRI during Cyberball (MageT1 = 10.3 years, MageT2 = 11.4 years). Results showed that change in neural activity during social exclusion differed as a function of peer preference for the a-priori defined region-of-interest of the subgenual anterior cingulate cortex (subACC), such that relatively lower history of peer preference was associated with an increase in activity from Time1 to Time2. Exploratory whole brain results showed a positive association between peer preference and neural activity at Time2 in the left and right orbitofrontal gyrus (OFG). These results may suggest that boys with lower peer preference become increasingly sensitive to social exclusion over time, associated with increased activity in the subACC. Moreover, lower peer preference and associated lower activity within the OFG may suggest decreased emotion regulation as a response to social exclusion.

Predicting change in neural activity during social exclusion in late childhood: The role of past peer experiences