Grand-average ERPs for Experimental Session I (experiments I and II): evidence for saliency related response modulation.

<p>Larger and faster responses are evoked by most salient stimuli. Grand-average ERPs', time locked for target category level, are shown for the representative PZ electrode and referenced to earlobes. Amplitude in microvolts (µv) is plotted against time (ms). S0 – ERPs for Standard stimulus; S+ ERPs for minimal saliency manipulation; S++ ERPs for intermediate saliency manipulation; S+++ ERPs for the maximal saliency manipulation. Top: ERP average waveforms for the Color/Luminance experiment. Bottom : ERP average waveforms for the for Phase Offset experiment. Differences between S0 and S+ <i>average</i> ERPs were found exclusively for phase offset condition, the only one where stimuli reached conscious access, thereby matching behavioral data (Tables S2 and S7 in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0086201#pone.0086201.s001" target="_blank">File S1</a>; and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0086201#pone-0086201-g002" target="_blank">Fig. 2</a>).