LORETA images for the ORN and ORP components at the ERP peak amplitudes in male and female groups are shown in Fig. 8. During the ORN activity, the maximal current density (or source) during loss was found in medial frontal gyrus (Brodmann Area, BA 10, 11) and anterior cingulate cortex (BA 32). The gain condition, on the other hand, showed maximal activity in posterior cingulate cortex (BA 31) in both males and females; females activated both anterior and posterior areas during loss and gain while males activated either anterior (for loss) or posterior areas (for gain). In the current density during the ORP activity, while males had significantly higher activity in medial frontal gyrus (BA 10, 11) and anterior cingulate cortex (BA 32) for the larger amounts of loss and gain (i.e. +50 and −50) than for the smaller amounts (+10 and −10), females did not show any significant difference. While females showed maximum current density in anterior cingulate (BA 32), medial frontal gyrus (BA 10, 11), and orbital gyrus (BA 11), males had the highest activity in posterior cingulate
