Table 2 Neuropsychological test scores

  Total correct (all delays)

12.0

(12.0–13.0)

12.0

(11.0–13.0)

12

(12.0–13.0)

12.5

(11.0–13.0)

0.71

  Total correct (4000 ms delay)

4.0

(4.0–5.0)

4.0

(4.0–5.0)

4.0

(4.0–5.0)

4.0

(4.0–5.0)

0.76

  Mean correct latency (all delays)

3938

(3086–4367)

3486

(3193–4465)

4225

(3729–4715)

4134

(3692–4469)

0.29

  First trial memory score (n out of 22)

11.5

(10.0–13.0)

10.0

(10.0–13.0)

11.0

(10.0–14.0)

11.0

(10.0–14.0)

0.24

  Mean trials to success (n out of 10)

2.6

(2.4–3.2)

3.0

(2.8–4.0)

2.4

(2.0–2.8)

2.4

(2.2–2.8)

0.16

  Total errors (n adjusted)

25.0

(18.0–34.0)

31.5

(22.0–40.0)

19.5

(13.0–25.0)

23.5

(18.0–32.0)

0.36

  Total errors (6 shapes, n adjusted)^a

8.0

(7.0–11.0)

6.0

(4.0–9.0)

5.5

(4.0–9.0)

6.0

(6.0–11.0)

0.15

  Total errors (8 shapes, n adjusted) ^b

13.5

(9.0–20.0)

21.5

(16.0–29.0)

11.0

(9.0–16.0)

16.0

(15.0–24.0)

0.50

  Number correct (n)

22.0

(21.0–23.0)

21.5

(21.0–23.0)

21.0

(21.0–22.0)

21.0

(20.0–23.0)

0.47

Mean correct latency (ms)

2358

(2068–2609)

2305

(2090–2834)

2573

(2365–2708)

2302

(2050–2667)

0.15

  Number correct (n)

14.0

(14.0–16.0)

14.5

(13.0–16.0)

16.0

(16.0–18.0)

16.0

(16.0–18.0)

0.77

 Mean correct latency

2538

(2266–2833)

2498.8

(2156–2855)

2416

(2234–2770)

2313

(1963–2504)

0.17

  dominant hand (ms to accomplish test)

120.0

(95.4–140.4)

104.2

(89.9–126.0)

117.1

(98.2–127.2)

116.2

(96.5–126.1)

0.41

  nondominant hand (ms to accomplish test)

124.2

(93.3–136.4)

116.6

(93.8–136.2)

113.4

(100.2–133.7)

107.2

(95.9–127.5)

0.52