Topographic maps of CSD for each subgroup during loss and gain conditions are shown in Fig. 6 (panels A1, A2, B1, and B2). Differences across conditions and groups have been observed in sources (positivity) and sinks (negativity). Overall, the results showed that the loss condition had predominant left and right frontal sources, while the gain condition had an additional mid-frontal source as well. Younger and older male HR offspring displayed weaker source activation at the left and right frontal regions during both loss and gain conditions in comparison their LR counterparts. Among females, the right frontal source was weaker during both loss and gain conditions in younger HR subjects compared to their LR counterparts. Further, a weaker prefrontal sink activation was found in younger male HR offspring compared to male LR subjects during both loss and gain conditions and only during the loss condition in females. Central and posterior sinks were almost comparable across groups.
