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When colours split from objects: The disconnection of colour perception from colour language and colour knowledge

When colours split from objects: The disconnection of colour perception from colour language and colour knowledge
When colours split from objects: The disconnection of colour perception from colour language and colour knowledge
We investigated object-colour knowledge in RDS, a patient with impaired colour naming after a left occipito-temporal stroke. RDS’s colour perception, object naming and verbal colour-knowledge (the ability to verbally say the typical colour of an object) were relatively spared. RDS was also able to state if an object was appropriately coloured or not. However, he could neither match colour names to coloured objects, nor match colour patches to grey-scale objects. Thus, RDS’s colour-naming deficit was associated with an impaired ability to conceptually relate visually presented object shapes and colours. These results suggest that objects in their typical colour are processed holistically in the visual modality, and that abilities important for colour naming may also be involved in abstracting colours from visual objects. We discuss these findings in the context of developmental psychology and linguistic anthropology, and propose a model of neuro-functional organization of object-colour knowledge.
0264-3294
Siuda-Krzywicka, Katarzyna
d93fd047-a59c-492c-ac0a-cf1710649ebd
Witzel, Christoph
dfb994f1-7007-441a-9e1a-ddb167f44166
Taga, Myriam
f2d97cfd-dda5-4634-a3a2-ad203ed5dfa9
Delanoe, Marine
28d13096-78f7-4529-ae32-54553cfe645d
Cohen, Laurent
f2e8dc23-a9f0-4f67-8e4e-5c3c447db44a
Bartolomeo, Paolo
3daa2e84-0393-40cb-a44b-e665c93c12b0
Siuda-Krzywicka, Katarzyna
d93fd047-a59c-492c-ac0a-cf1710649ebd
Witzel, Christoph
dfb994f1-7007-441a-9e1a-ddb167f44166
Taga, Myriam
f2d97cfd-dda5-4634-a3a2-ad203ed5dfa9
Delanoe, Marine
28d13096-78f7-4529-ae32-54553cfe645d
Cohen, Laurent
f2e8dc23-a9f0-4f67-8e4e-5c3c447db44a
Bartolomeo, Paolo
3daa2e84-0393-40cb-a44b-e665c93c12b0

Siuda-Krzywicka, Katarzyna, Witzel, Christoph, Taga, Myriam, Delanoe, Marine, Cohen, Laurent and Bartolomeo, Paolo (2019) When colours split from objects: The disconnection of colour perception from colour language and colour knowledge. Cognitive Neuropsychology. (doi:10.1080/02643294.2019.1642861).

Record type: Article

Abstract

We investigated object-colour knowledge in RDS, a patient with impaired colour naming after a left occipito-temporal stroke. RDS’s colour perception, object naming and verbal colour-knowledge (the ability to verbally say the typical colour of an object) were relatively spared. RDS was also able to state if an object was appropriately coloured or not. However, he could neither match colour names to coloured objects, nor match colour patches to grey-scale objects. Thus, RDS’s colour-naming deficit was associated with an impaired ability to conceptually relate visually presented object shapes and colours. These results suggest that objects in their typical colour are processed holistically in the visual modality, and that abilities important for colour naming may also be involved in abstracting colours from visual objects. We discuss these findings in the context of developmental psychology and linguistic anthropology, and propose a model of neuro-functional organization of object-colour knowledge.

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Accepted/In Press date: 7 July 2019
e-pub ahead of print date: 3 September 2019

Identifiers

Local EPrints ID: 439129
URI: http://eprints.soton.ac.uk/id/eprint/439129
ISSN: 0264-3294
PURE UUID: 179bda26-28a2-485e-9bfe-1a064f664377
ORCID for Christoph Witzel: ORCID iD orcid.org/0000-0001-9944-2420

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Date deposited: 03 Apr 2020 16:38
Last modified: 22 Nov 2021 08:05

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Contributors

Author: Katarzyna Siuda-Krzywicka
Author: Myriam Taga
Author: Marine Delanoe
Author: Laurent Cohen
Author: Paolo Bartolomeo

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