Electrophysiological evidence for modulation of lexical processing after repetitive exposure to foreign phonotactic rules

► Prelexical regularities can be modulated be repetitive exposure in adults. ► Electrophysiological correlates can assess changes of (attempted) lexical access. ► Passive Listening decreases N400 to phonotactically illegal pseudowords. ► N400 modulation is abolished for an arbitrary categorization task during training.