Hair Cells, AuditoryCochleaHair Cells, Auditory, InnerHair Cells, Auditory, OuterHairHair Cells, VestibularOrgan of CortiStereociliaSaccule and UtricleEvoked Potentials, Auditory, Brain StemEar, InnerMechanotransduction, CellularStria VascularisHair FollicleHearingSpiral GanglionTranscription Factor Brn-3CHearing LossDeafnessPerilymphTurtlesMesencephalonCiliaOtoacoustic Emissions, SpontaneousCochlear Microphonic PotentialsHearing Loss, Noise-InducedPresbycusisMicroscopy, Electron, ScanningHair Cells, AmpullaNeurons, EfferentAnimals, NewbornAcoustic StimulationHair ColorUsher SyndromesGentamicinsHair DiseasesLateral Line SystemMechanoreceptorsAuditory ThresholdHearing Loss, SensorineuralGuinea PigsChickensMembrane PotentialsHair RemovalHair DyesOrgan Culture TechniquesLarge-Conductance Calcium-Activated Potassium ChannelsGene Expression Regulation, DevelopmentalMice, KnockoutNoiseHair PreparationsMice, Mutant StrainsPatch-Clamp TechniquesAcoustic MaculaeElectric Capacitance