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Electrophysiological evidence for colour effects on the naming of colour diagnostic and noncolour diagnostic objects.

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Title: Electrophysiological evidence for colour effects on the naming of colour diagnostic and noncolour diagnostic objects.
Authors: Bramão, Inês (AUTHOR), Francisco, Ana (AUTHOR), Inácio, Filomena (AUTHOR), Faísca, Luís (AUTHOR), Reis, Alexandra (AUTHOR), Petersson, KarlMagnus (AUTHOR)
Source: Visual Cognition. Dec2012, Vol. 20 Issue 10, p1164-1185. 22p. 1 Color Photograph, 2 Diagrams, 2 Charts, 2 Graphs.
Subjects: Electrophysiology, Semantics, Electroencephalography, Evoked potentials (Electrophysiology), Visual perception, Human information processing, Task performance
Abstract: In this study, we investigated the level of visual processing at which surface colour information improves the naming of colour diagnostic and noncolour diagnostic objects. Continuous electroencephalograms were recorded while participants performed a visual object naming task in which coloured and black-and-white versions of both types of objects were presented. The black-and-white and the colour presentations were compared in two groups of event-related potentials (ERPs): (1) The P1 and N1 components, indexing early visual processing; and (2) the N300 and N400 components, which index late visual processing. A colour effect was observed in the P1 and N1 components, for both colour and noncolour diagnostic objects. In addition, for colour diagnostic objects, a colour effect was observed in the N400 component. These results suggest that colour information is important for the naming of colour and noncolour diagnostic objects at different levels of visual processing. It thus appears that the visual system uses colour information, during naming of both object types, at early visual stages; however, for the colour diagnostic objects naming, colour information is also recruited during the late visual processing stages. [ABSTRACT FROM PUBLISHER]
Copyright of Visual Cognition is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Electrophysiological evidence for colour effects on the naming of colour diagnostic and noncolour diagnostic objects.
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  Data: <searchLink fieldCode="AR" term="%22Bramão%2C+Inês%22">Bramão, Inês</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Francisco%2C+Ana%22">Francisco, Ana</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Inácio%2C+Filomena%22">Inácio, Filomena</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Faísca%2C+Luís%22">Faísca, Luís</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Reis%2C+Alexandra%22">Reis, Alexandra</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Petersson%2C+KarlMagnus%22">Petersson, KarlMagnus</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Visual+Cognition%22">Visual Cognition</searchLink>. Dec2012, Vol. 20 Issue 10, p1164-1185. 22p. 1 Color Photograph, 2 Diagrams, 2 Charts, 2 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Electrophysiology%22">Electrophysiology</searchLink><br /><searchLink fieldCode="DE" term="%22Semantics%22">Semantics</searchLink><br /><searchLink fieldCode="DE" term="%22Electroencephalography%22">Electroencephalography</searchLink><br /><searchLink fieldCode="DE" term="%22Evoked+potentials+%28Electrophysiology%29%22">Evoked potentials (Electrophysiology)</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+perception%22">Visual perception</searchLink><br /><searchLink fieldCode="DE" term="%22Human+information+processing%22">Human information processing</searchLink><br /><searchLink fieldCode="DE" term="%22Task+performance%22">Task performance</searchLink>
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  Label: Abstract
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  Data: In this study, we investigated the level of visual processing at which surface colour information improves the naming of colour diagnostic and noncolour diagnostic objects. Continuous electroencephalograms were recorded while participants performed a visual object naming task in which coloured and black-and-white versions of both types of objects were presented. The black-and-white and the colour presentations were compared in two groups of event-related potentials (ERPs): (1) The P1 and N1 components, indexing early visual processing; and (2) the N300 and N400 components, which index late visual processing. A colour effect was observed in the P1 and N1 components, for both colour and noncolour diagnostic objects. In addition, for colour diagnostic objects, a colour effect was observed in the N400 component. These results suggest that colour information is important for the naming of colour and noncolour diagnostic objects at different levels of visual processing. It thus appears that the visual system uses colour information, during naming of both object types, at early visual stages; however, for the colour diagnostic objects naming, colour information is also recruited during the late visual processing stages. [ABSTRACT FROM PUBLISHER]
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  Data: <i>Copyright of Visual Cognition is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/13506285.2012.739215
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              Text: Dec2012
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