兔在正弦横向倾斜过程中动眼神经神经元放电的行为。

Behavior of the oculomotor neurons discharge during sinusoidal lateral tilt in the rabbit.

作者信息

Favilla M, Ghelarducci B, La Noce A, Mais V, Starita A

出版信息

Boll Soc Ital Biol Sper. 1979 Oct 15;55(19):1960-5.

Abstract

The characteristics of the control exerted by macular and ampullar vestibular receptors on oculomotor neurons (OMN) have been investigated by submitting unanesthetized, encéphale isolé rabbits to sinusoidal lateral tilts of varying frequencies (0.013-0.2 Hz). The phase of the response exhibited a progressive shift towards head velocity with increasing frequencies of tilt. The sensitivity of the OMN significantly increased at frequencies above 0.025 Hz, corresponding to peak accelerations suprathreshold for canals related vestibular neurons. The convergent action of macular and ampullar vestibular receptors in the control of vertical eye movements is discussed in relation with stimulus frequency.

摘要

通过让未麻醉的、大脑分离的兔子接受不同频率（0.013 - 0.2赫兹）的正弦横向倾斜，研究了黄斑和壶腹前庭感受器对动眼神经元（OMN）施加控制的特征。随着倾斜频率增加，反应的相位朝着头部速度逐渐偏移。在高于0.025赫兹的频率下，动眼神经元的敏感性显著增加，这对应于与半规管相关的前庭神经元的阈上峰值加速度。结合刺激频率讨论了黄斑和壶腹前庭感受器在垂直眼球运动控制中的会聚作用。