Research Article

Influence of Different Cut-Off Values on the Diagnosis of Mild Cognitive Impairment in Parkinson's Disease

Table 1

Overview of the cognitive domains.

Nonmemory domainsMemory domains
Executive functionAttentionPraxis and visual functionPsychomotor speed and naming abilityList learning and memory recallLogical memory

Trail making test, part B63.2 ± 35.1
Tower of London test47.4 ± 26.4
NAI: Digit span60.4 ± 30.0
NAI: Figure test58.6 ± 22.5
Berlin Apraxia test37.5 ± 4.1
TAP: Value of phasic alertness49.7 ± 29.2
TAP: Go-Nogo, median RT48.9 ± 32.1
CERAD: Constructional praxis46.3 ± 33.8
CERAD: Constructional praxis delayed recall42.7 ± 36.6
VOSP: Object decision49.7 ± 29.1
CERAD: Verbal fluency44.1 ± 27.6
CERAD: Boston Naming Test55.5 ± 31.5
Trail-making test, part A56.9 ± 32.3

CERAD: Word-list memory36.4 ± 26.5
CERAD: Word-list recall41.6 ± 28.8
CERAD: Word-list recognition48.6 ± 33.4
CERAD: Word-list intrusion48.5 ± 31.6
WMS-R: Logical memory I31.8 ± 28.9
WMS-R: Logical memory II33.0 ± 27.9

Cronbachs alpha coefficient0.52−0.330.610.580.720.86

All values are given as mean percentile rank scores ± standard deviation, except for the Berlin Apraxia test for which raw values are presented. CERAD: Consortium for the Registry for Alzheimer's Disease, German version; WMS-R—Wechsler Memory Scale: revised; NAI—Nuernberger Alters Inventar; VOSP—Visual Object and Space Perception Battery; TAP—Testbatterie zur Aufmerksamkeitspruefung; RT—Reaction time.