Neural correlates of colour categories

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Fonteneau, Elisabeth and Davidoff, Jules B.. 2007. Neural correlates of colour categories. NeuroReport, 18(13), pp. 1323-1327. ISSN 0959-4965 [Article]

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Official URL: http://dx.doi.org/10.1097/WNR.0b013e3282c48c33

Abstract or Description

This study used an electrophysiological marker of visual detection to investigate adults' processing of colour difference. Event-related potentials were collected from the identical colour (green: G0) presented as the frequent or infrequent stimulus within different colour contexts. Critically, we compared differences within the same colour category (G0 vs. green: G1) to differences between colour categories (G0 vs. blue and G0 vs. red). All differences showed a change-related positivity with similar scalp distribution. It was, however, not simply the magnitude of colour difference that reduced the latencies of the change-related positivity. A change in colour category without a magnitude difference also reduced latency of the event-related potential. Thus, for the first time we report an independent neural correlate of a colour category.

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Article

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https://doi.org/10.1097/WNR.0b013e3282c48c33