Table 2 summarizes the behavioral performance for both tasks and groups. Both patients and controls distinguished old from new items well above chance for both tasks, as well as for each repetition lag (short, long) within each task, as can be seen from both the correct responses for old items and the sensitivity measure (dL). Still, patients’ accuracy was significantly poorer compared to controls, and this performance impairment was not affected by task. Patients had also about 100-ms longer response latencies than controls for old items (880 ±167 vs. 772 ±131 ms), and about 30-ms longer latencies than controls for new items (768 ±153 vs. 738 ±160 ms), but these overall group and group × condition differences did not interact with task. Lower accuracy rates (dL: 3.26 ±1.33 vs. 3.95 ±1.69) and somewhat longer response latencies (802 ±161 vs. 786 ±166 ms) for faces than words indicated that recalling unknown faces was a more difficult task.
