Kato Y, Igarashi M, Takahashi M, Wright W K
J Laryngol Otol. 1976 Jul;90(7):629-38. doi: 10.1017/s0022215100082530.
Seventeen of eighteen squirrel monkeys, under a restrained condition, showed positional nystagmus in different body positions. Good repeatability and consistency of the nystagmus were found, especially at the left-lateral, right-lateral, and head-hanging positions. Positional nystagmus was not observed after the subject underwent bilateral labyrinthectomy. However, one subject in which part of the crista ampullaris posterior remained, continuously showed a positional nystagmus. Therefore, the existence of a minimal vestibular imput from the crista ampullaris could provoke the nystagmus. Some changes occurred in positional nystagmus after bilateral macular ablation; however, the nystagmus did not completely disappear. Even though imput from the crista ampullaris is essential to provoke positional nystagmus in squirrel monkeys, the positional nystagmus probably results from a central dyscoordination between vestibulo-oculomotor function, spino-oculomotor function, vestibular and brain circulation, and psychological condition.
18只松鼠猴中有17只在受约束状态下，于不同体位时出现位置性眼球震颤。发现眼球震颤具有良好的重复性和一致性，尤其是在左侧卧位、右侧卧位和头下垂位时。在受试对象接受双侧迷路切除术后未观察到位置性眼球震颤。然而，有一只保留了部分后半规管壶腹嵴的受试对象持续出现位置性眼球震颤。因此，来自壶腹嵴的最小前庭输入的存在可能会引发眼球震颤。双侧黄斑切除术后位置性眼球震颤出现了一些变化；然而，眼球震颤并未完全消失。尽管来自壶腹嵴的输入对于引发松鼠猴的位置性眼球震颤至关重要，但位置性眼球震颤可能是由前庭眼动功能、脊髓眼动功能、前庭与脑循环以及心理状态之间的中枢失调导致的。
