Suzuki M, Harada Y
Arch Otorhinolaryngol. 1985;242(1):57-62. doi: 10.1007/BF00464407.
Isolated frog posterior semicircular canals were used. The ampullary nerve action potentials were recorded under three kinds of cupular movement, i.e., swing-door deflection, "cupula fixation-1" and "cupula fixation-2". Cupula fixation-1 was achieved by immobilizing the central top portion of the cupula, while cupula fixation-2 was achieved by immobilizing the entire top of the cupula. Cupula fixation-1 resulted in action potentials which were comparable to those of the swing-door deflection in terms of the maximum spike count and the stimulus-response curve. Cupula fixation-2 resulted in potentials with the maximum spike count comparable to the swing-door deflection; however, the response increase rate was very low. The time courses of the potentials in those cases of cupula fixation-1 and -2 were extremely short (about 2-3s) when compared to that of the swing-door deflection. These findings suggest that the swing-door deflection is physiologically more relevant in giving the optimum increase in response rate, as well as maintaining the time course of the tonic response.
使用分离的青蛙后半规管。在三种壶腹运动下记录壶腹神经动作电位，即旋转门偏转、“壶腹固定-1”和“壶腹固定-2”。壶腹固定-1通过固定壶腹的中央顶部来实现，而壶腹固定-2通过固定壶腹的整个顶部来实现。壶腹固定-1产生的动作电位在最大峰值计数和刺激-反应曲线方面与旋转门偏转的动作电位相当。壶腹固定-2产生的电位最大峰值计数与旋转门偏转相当；然而，反应增加率非常低。与旋转门偏转相比，壶腹固定-1和-2情况下电位的时间进程极短（约2-3秒）。这些发现表明，旋转门偏转在提供最佳反应率增加以及维持紧张性反应的时间进程方面在生理上更相关。
