ColorColor PerceptionColor VisionColor Perception TestsUltrasonography, Doppler, ColorColor Vision DefectsHair ColorEye ColorPigmentationNeutral RedNeutral CeramidaseEchocardiography, Doppler, ColorColorimetryProsthesis ColoringNeutral GlycosphingolipidsSkin PigmentationLightingHydrogen-Ion ConcentrationNeprilysinPhotic StimulationAmino Acids, NeutralRetinal Cone Photoreceptor CellsFeathersContrast SensitivitySphingomyelin PhosphodiesterasePigments, BiologicalSelection, GeneticPattern Recognition, VisualMolecular Sequence DataPsychophysicsLightButterfliesReceptor, Melanocortin, Type 1PhotographyAmino Acid Transport Systems, NeutralAnthocyaninsThiorphanTime FactorsAttentionEmotionsCuesRetinal PigmentsKineticsDiscrimination (Psychology)Sensory ThresholdsAmino AcidsMeatReaction TimeGenetic VariationFacial ExpressionVisual PerceptionSpectrophotometryFood PackagingBlood Flow VelocityAdaptation, OcularFood Coloring AgentsDental PolishingAmino Acid SequenceSensitivity and SpecificityMutationCeramidasesBiological EvolutionChromatography, Thin LayerGlycosphingolipidsFlowersForm PerceptionAgouti Signaling ProteinGenetic DriftEvolution, MolecularAnalysis of VarianceModels, GeneticMelaninsImage Processing, Computer-AssistedReproducibility of ResultsFood TechnologyPhenotypeCattleCeramidesTemperatureSpecies SpecificityTrehalaseTooth DiscolorationOpsinsPhylogenyColoring AgentsUltrasonography, Doppler, PulsedGenetics, PopulationBase SequenceVisual CortexChromatography, High Pressure LiquidSurface PropertiesImmersionMaterials TestingModels, BiologicalMotion PerceptionAcrylic ResinsDental MaterialsOptical IllusionsLipidsProtease Inhibitors