A neural signature of the unique hues.

Forder, L., Bosten, J., He, X. and Franklin, A., 2017. A neural signature of the unique hues. Scientific Reports, 7, p. 42364.

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DOI: 10.1038/srep42364

Abstract

Since at least the 17th century there has been the idea that there are four simple and perceptually pure “unique” hues: red, yellow, green, and blue, and that all other hues are perceived as mixtures of these four hues. However, sustained scientific investigation has not yet provided solid evidence for a neural representation that separates the unique hues from other colors. We measured event-related potentials elicited from unique hues and the ‘intermediate’ hues in between them. We find a neural signature of the unique hues 230 ms after stimulus onset at a post-perceptual stage of visual processing. Specifically, the posterior P2 component over the parieto-occipital lobe peaked significantly earlier for the unique than for the intermediate hues (Z = -2.9, p = .004). Having identified a neural marker for unique hues, fundamental questions about the contribution of neural hardwiring, language and environment to the unique hues can now be addressed.

Item Type:Article
ISSN:2045-2322
Uncontrolled Keywords:Human behaviour; Perception
Group:Faculty of Science & Technology
ID Code:27072
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:20 Feb 2017 12:48
Last Modified:20 Feb 2017 12:48

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