TABLE 2

Neuropsychologic Test Results (z Scores)

Test	MCI ¹¹C-PIB− (n = 3)	MCI ¹¹C-PIB+ (n = 5)	AD (n = 7)
Similarities	0.67 ± 0.79	−1.03 ± 1.3	−2.06 ± 1.9
Information	−0.91 ± 0.91	−1.26 ± 0.39	−2.29 ± 2.3
Block design	0.05 ± 1.7	−1.30 ± 0.77	−1.87 ± 1.1
Rey Complex Figure Test copy	−0.28 ± 0.87	−0.38 ± 0.63	−2.13 ± 3.8
Rey Complex Figure Test delay	−0.72 ± 1.17	−1.63 ± 0.19	−2.02 ± 0.98
Rey Auditory Verbal Learning Test	−0.60 ± 0.73	−1.71 ± 0.74	−2.02 ± 1.0
Rey Auditory Verbal Learning Test delay	−1.46 ± 0.83	−1.89 ± 0.62	−2.23 ± 0.95
Trail Making Test A time	−0.60 ± 0.64	−2.0 ± 1.3	−2.98 ± 6.4
Trail Making Test B time	−0.42 ± 1.0	−1.55 ± 1.1	−1.66 ± 1.7
Trail Making Test B correct	−0.38 ± 1.1	−1.9 ± 2.3	−1.85 ± 3.7

All values are mean ± SD. z scores below −1.645 are considered outside reference range.