The analysis for factor 442 at mid-frontal sites revealed a significant group main effect, with controls having greater sink activity than patients (M ± SD, −0.39 ± 0.86 vs. −0.18 ± 0.76). There was also a significant task main effect, resulting from less negative scores for words compared to faces (−0.17 ± 0.78 vs. −0.37 ± 0.83), and a significant task × condition interaction, stemming from a greater old/new effect for words (old vs. new, 0.04 ± 0.80 vs. −0.38 ± 0.70) when compared to faces (−0.22 ± 0.86 vs. −0.53 ± 0.78; Figure 6A, column 3). Task also interacted with group, with larger group differences observed for words (controls vs. patients, −0.33 ± 0.84 vs. −0.05 ± 0.72) than faces (−0.45 ± 0.89 vs. −0.31 ± 0.79). However, there were no interactions involving group and condition.
