CochleaGuinea PigsScala TympaniHair Cells, Auditory, OuterEvoked Potentials, Auditory, Brain StemHair Cells, AuditoryOrgan of CortiSpiral GanglionCochlear DiseasesHair Cells, Auditory, InnerSpiral Ligament of CochleaGuineaHearingEar, InnerPapua New GuineaPerilymphRound Window, EarLabyrinth Supporting CellsCochlear NerveStria VascularisCochlear Microphonic PotentialsEndolymphDeafnessStapesOtoacoustic Emissions, SpontaneousNew GuineaHearing Loss, Noise-InducedTectorial MembraneHearing LossAuditory Threshold