Figure 2.

Recall performance on a test of news events that occurred from 1951 to 2005. The scores for six patients with damage limited primarily to the hippocampal region and 13 controls have been aligned relative to the onset of amnesia (see Materials and Methods) so that performance can be shown for the time period after the onset of amnesia and for 5 year intervals preceding the onset of amnesia (retrograde amnesia). The data point at −5 represents 1–5 years before amnesia, the point at −10 represents 6–10 years before amnesia, and so on. Error bars indicate SEM.