Averaged waveforms for the primed (words) and unprimed stimuli (words) for each subject were used to identify and measure the N400 component. The N400 component was selected as the largest negative peak between 300 and 500 ms and occurring before the large positive component after the stimulus onset in mean waveforms. Peak amplitude and latency values were extracted for each subject using a semi-automatic peak-picking program. The analysis for the current study was limited to words.
