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Updated: Jun 9, 2025
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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
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Executive functions and processing speed in covert cerebral small vessel disease.
Hanna Jokinen1,2, Hanna M Laakso2, Anne Arola2
1Division of Neuropsychology, Neurocenter, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.
European Journal of Neurology
|October 30, 2024
Summary
Computerized cognitive tests better detect executive dysfunction in cerebral small vessel disease (cSVD) than traditional tests. Digital assessments show stronger links between cognitive impairments, white matter hyperintensities (WMHs), and daily function.
Area of Science:
- Neuroscience
- Gerontology
- Cognitive Psychology
Background:
- Cerebral small vessel disease (cSVD) is characterized by executive dysfunction and slowed processing speed.
- The differential impact of cSVD on executive function subdomains remains unclear.
- The sensitivity of computerized versus traditional cognitive tests in early cSVD detection requires investigation.
Purpose of the Study:
- To examine the associations between executive function subcomponents (cognitive flexibility, inhibitory control, working memory), processing speed, white matter hyperintensities (WMHs), and Instrumental Activities of Daily Living (IADL) in individuals with covert cSVD.
- To compare the sensitivity of computerized cognitive tests against traditional neuropsychological tests in detecting cognitive changes related to cSVD.
Main Methods:
- The Helsinki Small Vessel Disease Study included 152 older adults without stroke or dementia.
- Brain MRI with automated WMH volumetry and comprehensive neuropsychological testing were performed.
- Cognitive assessments included both paper-and-pencil tests and computerized tasks (Flexible Attention Test, Simon task, Sustained Attention to Response Task).
Main Results:
- WMH volume and IADL were significantly associated with various cognitive measures, independent of demographics.
- Computerized tests, including the Flexible Attention Test (FAT) and Simon task, demonstrated higher effect sizes compared to some traditional tests.
- Certain widely used tests like Stroop inhibition and digit span showed no significant association with WMHs or IADL.
Conclusions:
- Executive function subdomains and processing speed are linked to functional abilities and WMH severity in cSVD.
- The choice of assessment method significantly influences the detection of cognitive deficits in cSVD.
- Digital cognitive tests offer superior sensitivity in identifying early cognitive changes associated with cSVD compared to conventional methods.
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