Color perception differentiates Alzheimer's disease (AD) from Vascular dementia (VaD) patients
<strong>Background:</strong> Alzheimer’s Disease (AD) and Vascular Dementia (VaD) are the most common causes of dementia in older people. Both diseases appear to have similar clinical symptoms, such as deficits in attention and executive function, but specific cognitive domains are affec...
| Main Authors: | , , , , , |
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| Format: | Journal article |
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Cambridge University Press
2017
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| _version_ | 1797072056473354240 |
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| author | Arnaoutoglou, N Arnaoutoglou, M Nemtsas, P Costa, V Baloyannis, S Ebmeier, K |
| author_facet | Arnaoutoglou, N Arnaoutoglou, M Nemtsas, P Costa, V Baloyannis, S Ebmeier, K |
| author_sort | Arnaoutoglou, N |
| collection | OXFORD |
| description | <strong>Background:</strong> Alzheimer’s Disease (AD) and Vascular Dementia (VaD) are the most common causes of dementia in older people. Both diseases appear to have similar clinical symptoms, such as deficits in attention and executive function, but specific cognitive domains are affected. Current cohort studies have shown a close relationship between deposits and age-related macular degeneration (Johnson et al. 2002, Ratnayaka et al. 2015). Additionally, a close link between the thinning of the retinal nerve fiber (RNFL) and AD patients has been described, while it has been proposed that AD patients suffer from a nonspecific type of color blindness (Pache, et al. 2003). <strong>Methods:</strong> Our study included 103 individuals divided into three groups: A healthy control group (n=35), AD (n=32) according to DSM-IV-TR, NINCDS-ADRDA criteria and VaD (n=36) based on ...DS-AIREN, as well as Magnetic Resonance Imaging (MRI) results. The severity of patient’s cognitive impairment, was measured with the Mini Mental State Examination (MMSE) and was classified according to the Reisberg global deterioration scale (GDS). Visual perception was examined using the Ishihara plates: “Ishihara Color Vision Test - 38 Plate”. <strong>Results:</strong> The three groups were not statistically different for demographic data (age, gender and education). The Ishihara colour blindness test has a sensitivity of 80.6% and a specificity of 87.5% to discriminate AD and VaD patients when an optimal (32.5) cut-off value of performance is used. <strong>Conclusion:</strong> Ishihara Color Vision Test - 38 Plate is a promising potential method as an easy and not time-consuming screening test for the differential diagnosis of dementia between AD and VaD. |
| first_indexed | 2024-03-06T23:02:06Z |
| format | Journal article |
| id | oxford-uuid:627e5a65-71f4-4c64-9d6e-49ad90985fe3 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:02:06Z |
| publishDate | 2017 |
| publisher | Cambridge University Press |
| record_format | dspace |
| spelling | oxford-uuid:627e5a65-71f4-4c64-9d6e-49ad90985fe32022-03-26T18:06:35ZColor perception differentiates Alzheimer's disease (AD) from Vascular dementia (VaD) patientsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:627e5a65-71f4-4c64-9d6e-49ad90985fe3Symplectic Elements at OxfordCambridge University Press2017Arnaoutoglou, NArnaoutoglou, MNemtsas, PCosta, VBaloyannis, SEbmeier, K<strong>Background:</strong> Alzheimer’s Disease (AD) and Vascular Dementia (VaD) are the most common causes of dementia in older people. Both diseases appear to have similar clinical symptoms, such as deficits in attention and executive function, but specific cognitive domains are affected. Current cohort studies have shown a close relationship between deposits and age-related macular degeneration (Johnson et al. 2002, Ratnayaka et al. 2015). Additionally, a close link between the thinning of the retinal nerve fiber (RNFL) and AD patients has been described, while it has been proposed that AD patients suffer from a nonspecific type of color blindness (Pache, et al. 2003). <strong>Methods:</strong> Our study included 103 individuals divided into three groups: A healthy control group (n=35), AD (n=32) according to DSM-IV-TR, NINCDS-ADRDA criteria and VaD (n=36) based on ...DS-AIREN, as well as Magnetic Resonance Imaging (MRI) results. The severity of patient’s cognitive impairment, was measured with the Mini Mental State Examination (MMSE) and was classified according to the Reisberg global deterioration scale (GDS). Visual perception was examined using the Ishihara plates: “Ishihara Color Vision Test - 38 Plate”. <strong>Results:</strong> The three groups were not statistically different for demographic data (age, gender and education). The Ishihara colour blindness test has a sensitivity of 80.6% and a specificity of 87.5% to discriminate AD and VaD patients when an optimal (32.5) cut-off value of performance is used. <strong>Conclusion:</strong> Ishihara Color Vision Test - 38 Plate is a promising potential method as an easy and not time-consuming screening test for the differential diagnosis of dementia between AD and VaD. |
| spellingShingle | Arnaoutoglou, N Arnaoutoglou, M Nemtsas, P Costa, V Baloyannis, S Ebmeier, K Color perception differentiates Alzheimer's disease (AD) from Vascular dementia (VaD) patients |
| title | Color perception differentiates Alzheimer's disease (AD) from
Vascular dementia (VaD) patients |
| title_full | Color perception differentiates Alzheimer's disease (AD) from
Vascular dementia (VaD) patients |
| title_fullStr | Color perception differentiates Alzheimer's disease (AD) from
Vascular dementia (VaD) patients |
| title_full_unstemmed | Color perception differentiates Alzheimer's disease (AD) from
Vascular dementia (VaD) patients |
| title_short | Color perception differentiates Alzheimer's disease (AD) from
Vascular dementia (VaD) patients |
| title_sort | color perception differentiates alzheimer s disease ad from vascular dementia vad patients |
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