Table 1.

Performance on tests of anterograde memory

	Words	Faces	Prose recall	Paired-associate learning
				Trial 1	Trial 2	Trial 3
A.B.	31	33	0	1	1	2
L.M.	29	37	0	1	1	1
CON	41.1	38.1	6.4	6.0	7.6	8.9

The scores for controls (CON, n = 8) are from Squire and Shimamura (68). For comparison to A.B., scores are included for another patient (L.M.) whose hippocampal damage was confirmed by postmortem histology (14). The Words and Faces scores are based on a two-choice recognition test given after a 24-h delay [Warrington (69); chance = 25]. The prose recall scores are based on the number of story segments recalled after a 12-min delay. The paired-associate scores are the number of word pairs recalled out of 10 on three successive learning trials.