shapes, which vary in their meaningfulness to individual participants and thus in the extent to which they can support conceptual priming with repetition, but which can be made more familiar by repetition, independent of meaningfulness (Voss & Paller 2007). Only meaningful shapes produced FN400 effects, indicating that it is the potential for conceptual priming, not familiarity, which drives FN400 modulations. Such studies collectively provide strong evidence against purported functional distinctions between the FN400 and the N400, indicating instead that the processing responsible for the N400 is also active during recognition memory tasks.
