2001) in the critical AB window. These results from the AB paradigm reveal that words that are attended and perceived – but not identified and encoded into working memory -- can nonetheless have undergone some semantic analysis and, moreover, can influence the semantic analysis of upcoming items. Findings of N400 semantic priming effects during sleep (reviewed in Ibanez et al 2008) and N400 memory effects in amnesia (Olichney et al 2000) further support this view.