“…From a neuroanatomical and functional point of view, mounting evidence suggest that the prefrontal cortex, including the dorsal ACC generates error-related midfrontal theta/ERN as a low-level mismatch between the actual and expected response (Cavanagh et al, 2014; Jocham & Ullsperger, 2009; Parker et al, 2005; Ridderinkhof et al, 2004b). On the other hand, less clear is the origin of the Pe, which has been associated with the engagement of different areas such as the anterior parts of the ACC (Holroyd & Coles, 2002), posterior portions of the cingulate (Vocat et al, 2008) and insular cortices (Klein et al, 2013), which in turn have been associated to the salience network (Lenzoni et al, 2021; Orr et al, 2011; Wessel, 2017); the Pe/oPe seem to signal the awareness of an error, following motivational and affective events, and may be link with post-error adaptation (Overbeek et al, 2005; Danielmeier & Ullsperger, 2011). The distinct cortical involvement of these error-related responses is in line with evidence suggesting the existence of independent mechanisms underlying the error monitoring system (di Gregorio et al, 2018; Steinhauser & Yeung, 2010), that seem also to rely on distinct neurotransmitters (Falkenstein et al, 2005; Holroyd & Coles, 2002).…”