VertigoFearMeniere DiseaseDizzinessNystagmus, PathologicVestibular NeuronitisSemicircular CanalsVestibular DiseasesVestibular Function TestsNystagmus, PhysiologicBetahistineCaloric TestsElectronystagmographyLabyrinthitisLabyrinth DiseasesEar DiseasesPatient PositioningConditioning, ClassicalOtolithic MembraneFreezing Reaction, CatalepticLabyrinthine FluidsConditioning (Psychology)Vertebrobasilar InsufficiencyAmygdalaCerebellar DiseasesExtinction, Psychological