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Updated: May 22, 2026

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
Published on: June 12, 2017
Assessment of working-memory deficits in patients with mild cognitive impairment and Alzheimer's dementia using
Roy P C Kessels1, Pieter W Molleman, Joukje M Oosterman
1Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Montessorilaan 3, 6525 HR Nijmegen, The Netherlands. r.kessels@donders.ru.nl.
Background And Aims:
Although episodic memory deficits are a hallmark in mild cognitive impairment (MCI) and Alzheimer's dementia (AD), little attention has been paid so far to the ability to maintain and manipulate information during a brief period of time, i.e. working memory. In this study, we examine verbal working memory in both cognitively unimpaired older people and MCI and AD patients.
Methods:
Seventy- five participants were examined with either no cognitive impairment (n=25), MCI (n=25) or AD (n=25). Working memory was investigated with Wechsler's Working Memory Index tests (Digit Span, Letter-Number Sequencing and Arithmetic).
Results:
Both MCI and AD patients performed worse on all three working-memory tests compared with controls, the subtest Letter-Number Sequencing also revealing worse performance in AD compared with MCI patients.
Conclusions:
Workingmemory deficits are already present in MCI patients and worsen in AD patients, suggesting that working memory should be assessed as part of neuropsychological testing.
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