. 2017 Sep 4;137(1):91–98. doi: 10.1111/ane.12812

Table 1.

Tests used for Parkinson's disease cognitive impairment classification

Neuropsychological function	Test
Episodic memory	Free and Cued Selective Reminding Test (FCSRT)^a Logical memory and Paired associative learning from Wechsler memory scale (WMS)^a Brief visuospatial memory test (BVMT) total recall^a
Working memory	Digit span forward, from Wechsler Adult Intelligence Scale (WAIS) III^b Digit span backwards, from Wechsler Adult Intelligence Scale (WAIS) III^b
Attention	Trail Making Test (TMT) A^c and B^c
Verbal function	Controlled Oral Word Association (COWA) Boston Naming Test (BNT)
Visuospatial function	The Benton Judgement of Line Orientation test^d Pentagon copying from Mini‐Mental State Examination (MMSE)
Executive function	Wisconsin card sorting test (WCST) – computer version 2^e Mental Control from Wechsler memory scale (WMS) Category fluency (animals in 60 seconds)^e

A domain score was calculated by the mean of standardized scores (Z‐scores) in the tests of episodic memory^a, working memory^b, attention^c, visuospatial function^d, and executive function^e.

Subjects were classified as having mild cognitive impairment (PD‐MCI) if: (i) impaired in a minimum of two tests in one domain (single domain MCI) or in a minimum of one test in two different domains (multiple domain MCI), (ii) impairments were ≥1.5 standard deviations below mean of normative data, (iii) self‐perceived cognitive decline was reported by Questionnaire and/or directly by patient and/or family member, and (iv) no functional impairment in basic activities of living.

Parkinson's disease dementia (PDD) diagnoses were based on neuropsychological test results, objective and subjective cognitive decline, and by the occurrence of functional impairment in basic activities of living (ie, driving a car, social or personal care, medication management) due to cognitive decline.