哺乳类动物的耳蜗有明确的音频定位排列,从旋螺器不同部位来的神经纤维各有不同的最敏感频率(或称特征频率)。作者从螺旋神经节细胞记录细胞外电反应,结合扫描电镜检查,对比了正常豚鼠和卡那霉素中毒豚鼠耳蜗的音频定位排列关系。卡那霉素用两种方法给予,一法是给豚鼠皮下注射,共8～10天,最后一次注射后让动物活存10～27天。另一法是采用无菌外科技术,把约10 mg结晶卡那霉素硫酸盐放在圆窗凹处,让动 Mammalian cochlea clear positional audio arrangement, come from different parts of the screw is screwed nerve fibers most sensitive have different frequency (or frequency characteristics). Extracellular electrophysiological recording from the reaction of spiral ganglion cells, scanning electron microscopy, compared to normal guinea pigs and guinea pig cochlea Kanamycin poisoning audio positioning arrangement relationship. Kanamycin two ways to give, a method is for subcutaneous injection in guinea pigs, a total of 8 to 10 days after the last injection the animals SURVIVAL 10 to 27 days.