Figure 6

Grand-average ERP waveforms recorded at left and right central and parietal scalp sites, as well as mesial-parietal sites, as a function of conjoined attentional conditions. Unlike for previous figures, the waveforms have been plotted with a full time scale of 800 ms and tick-marks progressions of 100 ms to show the late latency attention effects. As can be seen, both P300 and N400 were strongly modulated by both shape- and location-relevance (per se and in interaction), whereas LP was overall more strongly modulated by image-pairs targetness.