Esophageal pH MonitoringVisual PerceptionLightingPerceptionContrast SensitivityPhotic StimulationVisual CortexColor PerceptionMotion PerceptionEvoked Potentials, VisualVisual PathwaysSensory ThresholdsPsychophysicsPattern Recognition, VisualForm PerceptionDepth PerceptionVisual FieldsVisual AcuityOptical IllusionsDiscrimination (Psychology)Space PerceptionVision, OcularLightSensitivity and SpecificitySize PerceptionAttentionColor VisionIllusionsColorReaction TimeCuesAdaptation, OcularFixation, OcularVision DisparityFlicker FusionOrientationPerceptual DisordersTime PerceptionSocial PerceptionSpeech PerceptionAuditory PerceptionPsychomotor PerformancePhotometryEye MovementsColor Perception TestsModels, NeurologicalSaccadesSignal Detection, PsychologicalOccipital LobeVision DisordersTime FactorsMagnetic Resonance ImagingVision, BinocularModels, PsychologicalRetinaPhosphenesBrain MappingAgnosiaRetinal Cone Photoreceptor CellsPerceptual DistortionNight VisionAnalysis of VarianceJudgmentField Dependence-IndependencePain PerceptionFunctional LateralityConsciousnessHuman BodyAfterimageAwarenessVision, MonocularVisual Field TestsCathode Ray TubeTemporal LobePerceptual MaskingVisual ProsthesisQuestionnairesDiscrimination LearningMacaca mulattaParietal LobeDifferential ThresholdMesopic VisionGestalt TheoryRotationAcoustic StimulationGeniculate BodiesMacacaFovea CentralisTouch PerceptionFigural AftereffectPitch PerceptionTaste PerceptionData DisplayMagnetoencephalographyDominance, OcularElectroretinographyNeuronsMotionFeeding MethodsColor Vision Defects