A late negativity – evoked by the auditory oddball paradigm: mismatch negativity, sustained field, or distinct component?

A relationship between the mismatch negativity (MMN) and selective adaptation of the N1m has been suggested by several studies. Here, magnetoencephalography was used to investigate the relationship between selective adaptation and auditory sustained fields (SF) in the context of the auditory oddball paradigm. Auditory evoked fields were recorded for pure tones of 1000 and 1050Hz presented to 19 listeners, while they watched a silent movie of their own choice. The tone duration was 50, 150 or 600ms in separate sets. The 1000Hz- and the 1050Hz tones were either used as standards or deviants in subsequent replicati…