Electrophysiological correlates of memory processes

Abstract In this commentary we highlight what are to our minds conflicting findings that have been employed to argue for different functional accounts of the mid-frontal event-related potential (ERP) old/new effect. We also offer our views on the difficulties associated with measuring conceptual priming as well as familiarity, and reemphasise that these issues are only a sub-set of those to consider when assessing the ERP literature that is germane to the question of the proceses that the mid-frontal ERP old/new effect indexes.