Farran, EK;
Cranwell, MB;
Alvarez, J;
Franklin, A;
(2013)
Colour discrimination and categorisation in Williams syndrome.
Research in Developmental Disabilities
, 34
(10)
pp. 3352-3360.
10.1016/j.ridd.2013.06.043.
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Abstract
Individuals with Williams syndrome (WS) present with impaired functioning of the dorsal visual stream relative to the ventral visual stream. As such, little attention has been given to ventral stream functions in WS. We investigated colour processing, a predominantly ventral stream function, for the first time in nineteen individuals with Williams syndrome. Colour discrimination was assessed using the Farnsworth-Munsell 100 hue test. Colour categorisation was assessed using a match-to-sample test and a colour naming task. A visual search task was also included as a measure of sensitivity to the size of perceptual colour difference. Results showed that individuals with WS have reduced colour discrimination relative to typically developing participants matched for chronological age; performance was commensurate with a typically developing group matched for non-verbal ability. In contrast, categorisation was typical in WS, although there was some evidence that sensitivity to the size of perceptual colour differences was reduced in this group.
| Type: | Article |
|---|---|
| Title: | Colour discrimination and categorisation in Williams syndrome |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.ridd.2013.06.043 |
| Publisher version: | http://dx.doi.org/10.1016/j.ridd.2013.06.043 |
| Language: | English |
| Additional information: | © 2013. This manuscript version is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licences are available at http://creativecommons.org/licenses/by/4.0. |
| Keywords: | Colour categorisation, Colour discrimination, Visual perception, Williams syndrome, Adolescent, Child, Child, Preschool, Color Perception, Color Perception Tests, Color Vision Defects, Discrimination (Psychology), Female, Humans, Male, Visual Pathways, Williams Syndrome |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Education UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1474892 |
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