srep42364.pdf (704.96 kB)
A neural signature of the unique hues
Version 2 2023-06-12, 08:37
Version 1 2023-06-09, 04:50
journal contribution
posted on 2023-06-12, 08:37 authored by Lewis Forder, Jenny BostenJenny Bosten, Xun He, Anna FranklinAnna FranklinSince 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.
History
Publication status
- Published
File Version
- Published version
Journal
Scientific ReportsISSN
2045-2322Publisher
Nature Publishing GroupExternal DOI
Volume
7Article number
a42364Department affiliated with
- Psychology Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-01-20First Open Access (FOA) Date
2017-01-20First Compliant Deposit (FCD) Date
2017-01-20Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC