Lateralisation of colour categorical perception: a cross-cultural study

Drivonikou, G.V. and Davies, I.R.L. and Franklin, A. and Taylor, Chloe (2007) Lateralisation of colour categorical perception: a cross-cultural study. In: European Conference on Visual Perception, 2007, Arezzo, Italy.

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Abstract

Categorical perception (CP) of colour is shown when discrimination is faster and more accurate for two colours from different colour categories than for two colours from the same category, Colour 173 Friday even when chromatic separation sizes are equated. This effect is stronger for the left than the right hemisphere (Drivonikou et al, 2007 Proceedings of the National Academy of Sciences of the USA 104 1097 ^ 1102). Here we assess the involvement of language in CP and its lateralisation. Using a target detection task where coloured targets were presented on same- or differentcategory backgrounds, we tested for CP in English, Greek, and African speakers. These languages segment the colour space in different ways. For example, Greek has two basic blue terms (ble and galazio), and many African languages have one term that includes blue and green. CP was shown by faster detection of targets on different- than same-category backgrounds. However, lateralisation of CP was only found when category boundaries were marked by the language. The findings are related to the debate about the nature and origin of colour CP

Metadata

Item Type:	Conference or Workshop Item (Paper)
School:	Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
Depositing User:	Sarah Hall
Date Deposited:	18 May 2020 12:56
Last Modified:	02 Aug 2023 17:59
URI:	https://eprints.bbk.ac.uk/id/eprint/31956

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