Auditory ThresholdAudiometryAudiometry, Pure-ToneCochlear DiseasesHearing Loss, Noise-InducedHearingEvoked Potentials, Auditory, Brain StemMelopsittacusCochleaNoiseHearing LossAcoustic StimulationSensory ThresholdsBacterial Outer Membrane ProteinsDifferential ThresholdPain ThresholdRod Cell Outer Segment