“…A negative component peaking at 400 msec (N400) after target onset has been shown to reflect semantic processing. The reduction in the amplitude of the N400 correlated with semantic priming, first described for printed words in sentential and single word contexts (Nobre & McCarthy, 1994;Besson, Kutas, & Van Petten, 1992;Bentin, McCarthy, & Wood, 1985;Rugg, 1985;Kutas & Hillyard, 1980), was later replicated for spoken words, where it was found to begin earlier and to be of longer duration (Besson, Faita, Czternasty, & Kutas, 1997;Ford et al, 1996;Bentin, Kutas, & Hillyard, 1993;Holcomb & Neville, 1990;McCallum, Farmer, & Pocock, 1984). The sensitivity of the N400 rapidly turned out to be not restricted to semantic congruency.…”