Visual PerceptionPhotophobiaLightPhotic StimulationVisual CortexVisual FieldsVision, OcularPerceptionEvoked Potentials, VisualVisual PathwaysVisual AcuityDepth PerceptionMotion PerceptionVisual Field TestsLight Signal TransductionSensory ThresholdsPhotoreceptor CellsRetinal Cone Photoreceptor CellsSensitivity and SpecificityPattern Recognition, Visualcis-trans-IsomerasesDark AdaptationRetinal Rod Photoreceptor CellsRetinaDarknessRod OpsinsContrast SensitivityForm PerceptionDiscrimination (Psychology)PsychophysicsAdaptation, OcularRhodopsinSpace PerceptionAttentionPerceptual DisordersSize PerceptionReaction TimePhotoreceptor Cells, InvertebrateElectroretinographyOptical IllusionsIllusionsPsychomotor PerformanceRod Cell Outer SegmentCuesVision, BinocularAmbystomaRetinal PigmentsColor PerceptionFixation, OcularPhotoreceptor Cells, VertebratePhosphenesAgnosiaOccipital LobeBrain MappingMagnetic Resonance ImagingEye ProteinsEye MovementsVision DisordersCircadian RhythmAuditory PerceptionTransducinOrientationVision DisparityConsciousnessTime FactorsTime PerceptionSignal Detection, PsychologicalHuman BodySaccadesRetinal Ganglion CellsGlaucomaFunctional LateralityVisual ProsthesisMutationGestalt TheoryAnalysis of VariancePerceptual MaskingUltraviolet RaysModels, NeurologicalAwarenessSpeech PerceptionTemporal LobeSocial PerceptionColorParietal LobeErectile DysfunctionVentricular Dysfunction, LeftFeeding MethodsBrainNeuropsychological TestsDiscrimination LearningPerceptual DistortionField Dependence-IndependenceMacaca mulattaAcoustic StimulationNeuronsElectroencephalographyDominance, OcularMagnetoencephalographyJudgment