Grand average study phase ERP waveforms.

<p>a) Grand averages for ERPs to the first word of subsequently not-recalled pairs (NW1), to the second word of subsequently not-recalled pairs (NW2), to the first word of subsequently recalled pairs (RW1), to the second word of subsequently recalled pairs (RW2); 2b) Word2−Word1 difference waves for subsequently recalled pairs [R(W2−W1)] and subsequently not-recalled pairs [N(W2−W1)] at the group level.