“…Accordingly, while several studies identified the dorsal ACC as the major generator of the FN (Bellebaum & Daum, ; Gehring & Willoughby, ; Holroyd et al., ; Miltner et al., ), several other cortical sources close or more distant to the dorsal ACC have also been reported, including, for example, the rostral ACC and the posterior cingulate (Nieuwenhuis, Slagter et al., ), lateral frontal cortex and temporal sites (Bellebaum & Daum, ), as well as the presupplementary and supplementary motor area (Holroyd, Nieuwenhuis et al., ). Others have even identified subcortical regions (i.e., the striatum) as the main FN source (Foti et al., ), although these findings are not unquestioned (Cohen, Cavanagh, & Slagter, ; also see Foti, Weinberg, Dien, & Hajcak, ). Moreover, single unit recordings in monkeys suggest that there are several functional subpopulations of neurons in the MFC that can code distinct kinds of reward information like outcome favorableness (e.g., Matsumoto, Matsumoto, Abe, & Tanaka, ), recent reward history (e.g., Seo & Lee, ), or unexpectedness of a particular reward (Hayden et al., ).…”