Appendix 1—table 1. Neuropsychological test performance in patients with AD.

Variable	Test score(mean ± SD)
Episodic memory function
Visual free recall (Benson 10 min)	4.9 ± 3.2
Short delay verbal memory (CVLT 30 s)	3.9 ± 2.4
Verbal free recall (CVLT 10 min)	2.3 ± 2.9
Executive function and working memory
Design fluency	6.4 ± 2.9
Information processing speed (Stroop color naming)	48.2 ± 17.6
Cognitive control (Stroop Inhibition)	21.3 ± 12.9
Verbal working memory (Digit span forward)	5.3 ± 1.33
Attention (Digit span backward)	3.8 ± 1.2
Set shifting (Modified trails – speed)	0.2 ± 0.2
Verbal learning (CVLT total score)	17.9 ± 6.6
Language function
Reading irregular words	5.6 ± 0.7
Syntax comprehension	3.9 ± 1.2
Verbal agility	4.6 ± 1.2
Boston Naming Test	12.3 ± 3.1
Lexical fluency (D words/1 min)	10.8 ± 5.0
Category fluency (animals/1 min)	11.4 ± 5.0
Repetition	3.3 ± 1.4
Visuospatial function
Face discrimination (CATS – face matching)	10.8 ± 1.7
Visuoconstruction (Benson copy)	12.8 ± 4.2
Location discrimination (VOSP number location)	7.5 ± 2.5
Calculations	3.4 ± 1.4
Emotion naming (CATS – affect matching)	12.7 ± 1.0

CVLT = California Verbal Learning Test containing nine items; CATS = Comprehensive Affect Testing System; VOSP = Visual Object and Space Perception.