Assessment of verbal and visuospatial working memory in mild cognitive impairment and Alzheimer’s dementia
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| Format: | Artículo científico |
| Language: | en |
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Associação Neurologia Cognitiva e do Comportamento
2015
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| author | Roy P.C. Kessels |
| author_facet | Roy P.C. Kessels |
| contents | Assessment of verbal and visuospatial working memory in mild cognitive impairment and Alzheimer’s dementia Roy P.C. Kessels Anouk Overbeek Zita Bouman Medicina digit span spatial span Working memory spatial addition Wechsler memory scale In addition to episodic memory impairment, working memory may also be compromised in mild cognitive impairment (MCI) or Alzheimer’s dementia (AD), but standard verbal and visuospatial span tasks do not always detect impairments. Objective: To examine whether more complex verbal and visuospatial working memory tasks result in more reliable impairment detection. Methods: The Digit Span (forward, backward and sequencing), Spatial Span (forward and backward) and Spatial Addition test from the Wechsler batteries were administered to MCI and AD patients and performance compared to healthy older adult controls. Results: Results showed that both the MCI and AD patients had impaired performance on the Spatial Addition test. Both groups also had impaired performance on all three Digit Span conditions, but no differences were found between forward and backward conditions in any of the groups. The sequencing condition differed from the backward condition only in the AD group. Spatial Span performance was impaired in AD group patients but not in MCI patients. Conclusion: Working memory deficits are evident in MCI and AD even on standard neuropsychological tests. However, available tests may not detect subtle impairments, especially in MCI. Novel paradigms tapping the episodic buffer component of working memory may be useful in the assessment of working memory deficits, but such instruments are not yet available for clinical assessment. 2015 artículo científico 1980-5764 https://www.redalyc.org/articulo.oa?id=339541521014 en http://www.redalyc.org/revista.oa?id=3395 Dementia & Neuropsychologia application/pdf Associação Neurologia Cognitiva e do Comportamento Dementia & Neuropsychologia (Brasil) Num.3 Vol.9 |
| format | Artículo científico |
| id | redalyc_339541521014 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Associação Neurologia Cognitiva e do Comportamento |
| spellingShingle | Assessment of verbal and visuospatial working memory in mild cognitive impairment and Alzheimer’s dementia Roy P.C. Kessels Medicina digit span spatial span Working memory spatial addition Wechsler memory scale Assessment of verbal and visuospatial working memory in mild cognitive impairment and Alzheimer’s dementia Roy P.C. Kessels Anouk Overbeek Zita Bouman Medicina digit span spatial span Working memory spatial addition Wechsler memory scale In addition to episodic memory impairment, working memory may also be compromised in mild cognitive impairment (MCI) or Alzheimer’s dementia (AD), but standard verbal and visuospatial span tasks do not always detect impairments. Objective: To examine whether more complex verbal and visuospatial working memory tasks result in more reliable impairment detection. Methods: The Digit Span (forward, backward and sequencing), Spatial Span (forward and backward) and Spatial Addition test from the Wechsler batteries were administered to MCI and AD patients and performance compared to healthy older adult controls. Results: Results showed that both the MCI and AD patients had impaired performance on the Spatial Addition test. Both groups also had impaired performance on all three Digit Span conditions, but no differences were found between forward and backward conditions in any of the groups. The sequencing condition differed from the backward condition only in the AD group. Spatial Span performance was impaired in AD group patients but not in MCI patients. Conclusion: Working memory deficits are evident in MCI and AD even on standard neuropsychological tests. However, available tests may not detect subtle impairments, especially in MCI. Novel paradigms tapping the episodic buffer component of working memory may be useful in the assessment of working memory deficits, but such instruments are not yet available for clinical assessment. 2015 artículo científico 1980-5764 https://www.redalyc.org/articulo.oa?id=339541521014 en http://www.redalyc.org/revista.oa?id=3395 Dementia & Neuropsychologia application/pdf Associação Neurologia Cognitiva e do Comportamento Dementia & Neuropsychologia (Brasil) Num.3 Vol.9 |
| title | Assessment of verbal and visuospatial working memory in mild cognitive impairment and Alzheimer’s dementia |
| topic | Medicina digit span spatial span Working memory spatial addition Wechsler memory scale |
| url | https://www.redalyc.org/articulo.oa?id=339541521014 |