Kubo T, Igarashi M, Jensen D W, Wright W K
ORL J Otorhinolaryngol Relat Spec. 1981;43(1):26-38. doi: 10.1159/000275522.
Head and eye movements induced by vestibular stimuli (rotational velocity steps) were studied under several experimental conditions in squirrel monkeys. Monkeys showed prominent head nystagmus under a free head condition. Slow phase gaze velocity (SPGV) was calculated by summing the slow phase speed of coupled head and eye nystagmus. A statistical test showed no significant difference between slow phase eye velocities in a fixed head versus SPGV in a free head condition. This indicates that an accurate negative feedback control of eye movements is performed by the vestibular system when sensing active head movements. Bilateral lateral semicircular canal block eliminated these responses in subjects without amphetamine injection. However, in amphetamine-injected animals, 14-21% of preoperative response could be found even after this operation. Since the plane of rotation was not parallel to that of the lateral semicircular canals, the result was considered to be due to vertical semicircular canal stimulation.
在松鼠猴的几种实验条件下，研究了前庭刺激（旋转速度阶跃）诱发的头部和眼球运动。在头部自由的条件下，猴子表现出明显的头部眼球震颤。通过将耦合的头部和眼球震颤的慢相速度相加来计算慢相注视速度（SPGV）。统计检验表明，固定头部时的慢相眼球速度与头部自由条件下的SPGV之间无显著差异。这表明，在前庭系统感知主动头部运动时，能对眼球运动进行精确的负反馈控制。双侧外侧半规管阻塞消除了未注射苯丙胺的受试者的这些反应。然而，在注射了苯丙胺的动物中，即使在手术后仍能发现术前反应的14%-21%。由于旋转平面与外侧半规管的平面不平行，因此认为该结果是由于垂直半规管刺激所致。
