ColorColor PerceptionColor VisionColor Perception TestsUltrasonography, Doppler, ColorColor Vision DefectsHair ColorEye ColorPigmentationSpectrum AnalysisSpectrophotometryEchocardiography, Doppler, ColorRetinal PigmentsRetinal Cone Photoreceptor CellsColorimetryLightingProsthesis ColoringSkin PigmentationLightSignal Processing, Computer-AssistedMicrospectrophotometryPhotic StimulationMagnetic Resonance SpectroscopySpectral KaryotypingFourier AnalysisSpectrophotometry, InfraredPigments, BiologicalSpectrophotometry, UltravioletSound SpectrographyContrast SensitivityFeathersAlgorithmsSpectrum Analysis, RamanSpectrometry, FluorescenceButterfliesReproducibility of ResultsRod OpsinsAcoustic StimulationTomography, Optical CoherenceAdaptation, OcularSensitivity and SpecificityPsychophysicsTime FactorsOpsinsPhotographySensory ThresholdsElectroencephalographySpeech AcousticsOptics and PhotonicsImage Processing, Computer-AssistedMass SpectrometryDiscrimination (Psychology)CuesBlood Flow VelocityMolecular StructureReceptor, Melanocortin, Type 1Vision, OcularPattern Recognition, VisualAnthocyaninsAuditory PerceptionPhotoreceptor CellsSpeech PerceptionPhotometryAutonomic Nervous SystemSpectroscopy, Near-InfraredPitch PerceptionElectron Spin Resonance SpectroscopyFluorescent DyesRetinaPerceptual MaskingImage EnhancementHeart RateImage Interpretation, Computer-AssistedFluorescenceMelaninsFood PackagingPsychoacousticsKineticsCone OpsinsMeatAuditory ThresholdVisual PerceptionCircular DichroismFood Coloring AgentsForm PerceptionUltrasonography, Doppler, PulsedDental PolishingArtifactsReaction TimeOcular Physiological PhenomenaHydrogen-Ion ConcentrationCarotenoidsMolecular Sequence DataAnalysis of VarianceFlowersEquipment DesignNoiseOxidation-ReductionAcousticsImage Cytometry