Otoacoustic Emissions, SpontaneousCochleaAcoustic Impedance TestsPerceptual DistortionAudiometry, Pure-ToneReflex, AcousticEvoked Potentials, Auditory, Brain StemEar CanalAuditory ThresholdHearing TestsAudiometry, Evoked ResponseAcoustic StimulationBasilar MembraneAudiometryHearing DisordersCochlear Microphonic PotentialsHearing LossHair Cells, Auditory, OuterEar, MiddleHearingHearing Loss, SensorineuralNeonatal ScreeningSound SpectrographyHearing Loss, Noise-InducedEvoked Potentials, AuditoryTinnitusOlivary NucleusHearing Loss, CentralOtoscopySoundAudiologyNoiseTympanic MembraneCochlear NerveTectorial MembraneHearing Loss, ConductiveAuditory FatigueEfferent PathwaysVestibulocochlear Nerve DiseasesLizardsPresbycusisChinchillaAmplifiers, ElectronicEar, InnerAuditory PathwaysLabyrinthine FluidsHair Cells, AuditoryPsychoacousticsNoise, OccupationalOrgan of CortiCochlear DiseasesHair Cells, Auditory, InnerRound Window, EarHearing Loss, UnilateralAuditory PerceptionPressureGerbillinaeSodium SalicylateNonlinear DynamicsHearing Loss, BilateralNeurons, EfferentAcousticsPerceptual MaskingVibrationEar, ExternalPersons With Hearing ImpairmentsReaction TimeStria VascularisCalibrationInfant, NewbornDeafnessLoudness PerceptionSignal Processing, Computer-AssistedMechanotransduction, CellularGuinea PigsFunctional LateralitySpiral GanglionEarTime FactorsReference ValuesPositron-Emission TomographyCase-Control Studies