Table 1

Neuropsychological test scores

VariableMean (SD)Range
Max, maximum; MMSE, mini-mental state examination; MWT-B, Mehrfachwahlwortschatztest B; VCTS, vision contrast test system; VOSP, visual object and space perception test; WIP, Wechsler intelligence test.
Dementia
MMSE27.7 (1.4)25 to 30
Intelligence
IQ (MWT-B or WIP)108.4 (9.9)97 to 127
Contrast sensitivity and visual acuity
VCTSNormal
Visuoperceptive function (VOSP)
Shape detection (max 20; cut off <17)19.7 (0.5)19 to 20
Incomplete letters (max 20; cut off <16)19.3 (1.1)17 to 20
Position discrimination (max 20; cut off <18)19.7 (0.5)19 to 20
Number location (max 10; cut off <7)8.9 (1.2)7 to 10
Dot counting (max 10; cut off <8)9.5 (1.0)7 to 10
Cube analysis (max 10; cut off <6)9.5 (1.0)7 to 10
Facial perception
Benton recognition test (cut off <39)43.6 (3.7)39 to 49