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Centre for Policy on Ageing | |
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| Colour discrimination, colour naming and colour preferences among individuals with Alzheimer's disease | | Author(s) | Helle Wijk, Stig Berg, Lars Sivik |
| Journal title | International Journal of Geriatric Psychiatry, vol 14, no 12, December 1999 |
| Pages | pp 1000-1005 |
| Keywords | Cognitive processes ; Mental speed ; Performance ; Dementia ; Testing ; Sweden. |
| Annotation | Despite a long tradition of studies regarding the meaning and importance of colour, there is still a lack of studies on how dementia affects aspects of colour perception. The aim of this study is to gain further knowledge concerning the ability of colour naming, colour discrimination and colour preference in Alzheimer's disease (AD). 50 subjects tested were patients at the dementia assessment unit at the psychiatric clinic of the Sahlgrenska University Hospital, Gothenburg, Sweden, in 1996-97. The ability to detect colour differences in the yellow, red, blue, green areas, the ability to assign a name to 22 colour samples, and the ability to rank seven colours in order of preference were measured. Discrimination ability was significantly better in the yellow and red areas and for lightness variations. Cognitive decline had a significant impact on naming mixed colours and using elaborate colour names. Severity of dementia did not affect the preference rank of colours. Thus, ability to discriminate is affected by AD, with most errors in the blue and green areas. Naming colours shows a cognitive decline. Preferences for colour are stable, despite the disease. (RH). |
| Accession Number | CPA-000203203 A |
| Classmark | DA: DG: 5H: EA: 3T: 76P |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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