Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/130951
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Type: Journal article
Title: Effectiveness of sorting tests for detecting cognitive decline in older adults with dementia and other common neurodegenerative disorders: A meta-analysis
Author: Foran, A.M.
Mathias, J.
Bowden, S.
Citation: Neuroscience and Biobehavioral Reviews, 2020; 120:442-454
Publisher: Elsevier
Issue Date: 2020
ISSN: 0149-7634
1873-7528
Statement of
Responsibility: 
AM Foran, JL Mathias, SC Bowden
Abstract: The demand for simple, accurate and time-efficient screens to detect cognitive decline at point-of-care is increasing. Sorting tests are often used to detect the ‘executive’ deficits that are commonly associated with behavioural-variant frontotemporal dementia (bvFTD), but their potential for use as a cognitive screen with older adults is unclear. A comprehensive search of four databases identified 142 studies that compared the sorting test performance (e.g. WCST, DKEFS-ST) of adults with a common neurodegenerative disorder (e.g. Alzheimer’s disease, vascular dementia, bvFTD, Parkinson’s disease) and cognitively-healthy controls. Hedges’ g effect sizes were used to compare the groups on five common test scores (Category, Total, Perseveration, Error, Description). The neurodegenerative disorders (combined) showed large deficits on all scores (g -1.0 to -1.3), with dementia (combined subtypes) performing more poorly (g -1.2 to -2.1), although bvFTD was not disproportionately worse than the other dementias. Overall, sorting tests detected the cognitive impairments caused by common neurodegenerative disorders, especially dementia, highlighting their potential suitability as a cognitive screen for older adults.
Keywords: Older adult; Cognitive screen; Sorting tests; Meta-analysis; Neurodegenerative; Dementia; Frontotemporal; Alzheimer’s; Parkinson’s
Description: Available online 20 October 2020
Rights: © 2020 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.neubiorev.2020.10.013
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Psychology publications

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