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为了在活体上研究哺乳类动物耳蜗基底膜的电-机械特性,将一对铂-铱电极分别置于30只豚鼠耳蜗底回的前庭阶和鼓阶.用矩形直流脉冲电刺激蜗管,用激光多普勒测速仪测定电刺激诱发的耳蜗基底膜振动的幅度和速度.结果表明,在听敏度正常豚鼠的耳蜗,电刺激可诱发基底膜向正电极方向位移,其位移波形类似于电脉冲的矩形波.在矩形脉冲中的起始沿和结束沿,由
In order to study the electromechanical properties of mammalian cochlea basilar membrane in vivo, a pair of platinum-iridium electrodes were placed in the vestibule and scala tympani of the bottom of the cochlea of 30 guinea pigs respectively.Electrospind the cochlea with a rectangular DC pulse, Laser Doppler velocimetry was used to measure the amplitude and velocity of the basement membrane vibration induced by electrical stimulation.The results showed that the displacement of the basement membrane to the positive electrode was induced by electrical stimulation in cochlear of normal hearing guinea pigs, Rectangular wave pulse. In the rectangular pulse in the beginning and ending along, by