Table 2.

Memory and perception scores by age group.

	Younger adults	Older adults
Memory scores
Forced Choice
Correct	0.84 (0.07)	0.76 (0.08)
Yes/No
Hits	0.80 (0.10)	0.83 (0.10)
False Alarms	0.35 (0.13)	0.54 (0.13)
Correct Rejections	0.65 (0.13)	0.46 (0.13)
Misses	0.20 (0.10)	0.17 (0.10)
Perceptual discrimination accuracy
Object Low	0.98 (0.03)	0.98 (0.34)
Object High	0.82 (0.09)	0.65 (0.13)
Scene Low	0.97 (0.04)	0.94 (0.06)
Scene High	0.89 (0.09)	0.78 (10)
Discrimination composite (z)⁎	0.88 (0.78)	−0.25 (0.91)

^⁎Mean of corrected object and scene discrimination scores (High-Low ambiguity).