denotes the quality (loss/gain) and quantity (large/small) of the outcome event that has a reinforcement value, 2) the term error in ERN and fERN may only be attributable for error-related paradigms, 3) the term MFN indicates the brain area of its origin (medial frontal area) but not the attributable function, and 4) the term feedback in FRN and fERN is a general term that may denote both error and outcome. Similarities and differences between these two negativities (i.e. ERN and ORN) are well described [18, 19].
