Colour discrimination, colour naming and colour preferences among individuals with Alzheimer's disease.

Wijk, Helle, 1958 (author): Gothenburg University,Göteborgs universitet,Institutionen för omvårdnad,Institute of Nursing,University of Gothenburg

Berg, S (author)

Sivik, L (author)

Steen, B (author)

(creator_code:org_t)

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Abstract Subject headings

OBJECTIVE: To study the ability of colour naming, colour discrimination and colour preference in Alzheimer's disease (AD). DESIGN: Descriptive, consecutive sample. PARTICIPANTS: Fifty subjects >65 years with AD. INTERVENTIONS: Testing colour discrimination, colour naming and colour preferences. MAIN OUTCOME MEASURES: Ability to detect colour differences in the yellow, red, blue and green areas, ability to assign a name to 22 colour samples, ability to rank seven colours in order of preference. MAIN RESULTS: Discrimination ability was significantly better in the yellow and red area 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 order of colours. CONCLUSIONS: Ability to discriminate is affected in AD, with most errors in the blue and green area. Naming colours shows a cognitive decline. Preferences for colour are stable despite the disease. Copyright 1999 John Wiley & Sons, Ltd. PMID: 10607966 [PubMed - indexed for MEDLINE]

By the university: University of Gothenburg; Chalmers University of Technology

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