Ohyama K, Kusakari J, Kawamoto K
Hear Res. 1985 Feb;17(2):143-51. doi: 10.1016/0378-5955(85)90017-6.
In order to obtain information about how ultrasonic stimuli are perceived (USP) in man, guinea pig cochleae were stimulated by bone conduction with frequencies (98.8 and 143.5 kHz) above the normal auditory field of this animal. The cochlear potentials recorded consisted of CM, SP and AP originating from the basal turn of the cochlea, and were found to be influenced by asphyxia, administration of ethacrynic acid, hypothermia and change of interstimulus interval. In addition, in kanamycin-treated animals the mean AP amplitude decreased to about one fourth of the normal value, and the mean AP latency increased significantly. These findings suggest that there is no special sense organ for the detection of USP but that such sounds activate hair cells in the basal turn of the cochlea.
为了获取关于人类如何感知超声刺激(USP)的信息,用高于豚鼠正常听觉范围的频率(98.8和143.5千赫兹)通过骨传导刺激豚鼠耳蜗。所记录的耳蜗电位包括起源于耳蜗基底转的CM、SP和AP,发现其受窒息、给予依他尼酸、低温以及刺激间隔变化的影响。此外,在卡那霉素处理的动物中,平均AP振幅降至正常值的约四分之一,且平均AP潜伏期显著增加。这些发现表明,不存在检测USP的特殊感觉器官,而是此类声音激活了耳蜗基底转的毛细胞。