Rude S A, Baker J F
Department of Physiology, Northwestern University Medical School, Chicago, IL 60611.
Exp Brain Res. 1988;73(2):357-63. doi: 10.1007/BF00248228.
The horizontal vestibulo-ocular reflex was measured electro-oculographically in four cats during sinusoidal rotations in the dark at frequencies from 0.01 Hz to 1.0 Hz in five body orientations. Vertical axis rotations in the prone and supine positions were used to stimulate horizontal canals only. Horizontal axis rotations, with the cat on the left or right side or nose down (pitched 90 degrees from prone) were used to stimulate horizontal canal plus otolith organs. At frequencies below 0.05 Hz the horizontal vestibulo-ocular reflex produced by horizontal canal plus otolith stimulation showed a more accurately compensatory response than the horizontal vestibulo-ocular reflex produced by horizontal canal stimulation alone. Canal plus otolith horizontal vestibulo-ocular reflex gain and phase remained relatively constant across all frequencies, while the horizontal vestibulo-ocular reflex gain and phase from orientations involving canal stimulation alone changed dramatically as rotation frequency decreased. In addition, the reflex in the supine position showed gain decreases and phase advances at higher frequencies than in the prone position.
在黑暗中，以0.01赫兹至1.0赫兹的频率对四只猫进行正弦旋转，在五个身体方位下用电眼震图测量水平前庭眼反射。俯卧位和仰卧位的垂直轴旋转仅用于刺激水平半规管。猫处于左侧、右侧或鼻朝下（相对于俯卧位倾斜90度）时的水平轴旋转用于刺激水平半规管加耳石器官。在低于0.05赫兹的频率下，水平半规管加耳石刺激产生的水平前庭眼反射比仅水平半规管刺激产生的水平前庭眼反射表现出更精确的补偿反应。在所有频率下，半规管加耳石的水平前庭眼反射增益和相位保持相对恒定，而仅涉及半规管刺激的方位产生的水平前庭眼反射增益和相位随着旋转频率降低而发生显著变化。此外，仰卧位的反射在比俯卧位更高的频率下表现出增益降低和相位超前。
