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- W3048202443 endingPage "102987" @default.
- W3048202443 startingPage "102987" @default.
- W3048202443 abstract "Abstract Introduction Color constancy, a property of conscious color experience, maintains object color appearance across illuminant changes. We investigated the neural correlates of subliminal vs. conscious stimulus deviations of color constancy manipulations. Methods Behavioral and Oddball EEG/ERP experiments were conducted (n = 20). Psychophysical illuminant variation discrimination thresholds were first estimated, to establish individual perceptual awareness ranges, allowing for simulation of natural daylight spectral and spatial variations on colored surfaces, at different ambiguity levels. Results Behavioral results validated illuminant choice. ERPs showed a significant modulation of posterior P1 component specifically for the subliminal global uniform deviation condition, respecting color constancy. Neural correlates of conscious percepts were identified at posterior N2-P3 latencies, parietal (P3b) and frontal regions. Conclusions We identified an early subliminal correlate of low-level illuminant change, which reflects automatic unconscious detection of global color constancy deviations. Its suppression under conscious perception is probably due to top-down suppression according to prediction error models." @default.
- W3048202443 created "2020-08-13" @default.
- W3048202443 creator A5014632758 @default.
- W3048202443 creator A5039614931 @default.
- W3048202443 creator A5048915066 @default.
- W3048202443 creator A5072361742 @default.
- W3048202443 creator A5076512952 @default.
- W3048202443 creator A5091005808 @default.
- W3048202443 date "2020-09-01" @default.
- W3048202443 modified "2023-09-26" @default.
- W3048202443 title "The conscious experience of color constancy and neural responses to subliminal deviations – A behavioral and EEG/ERP oddball study" @default.
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