Gresty M, Leech J
Aviat Space Environ Med. 1977 Aug;48(8):741-4.
Subjects were required to use their head and eyes in pursuit of visual targets which moved randomly or sinusoidally in the horizontal plane. All subjects disliked moving their heads to pursue the random motion, apparently because the motion broke fixation which resulted in a predominance of the vestibulo-ocular compensatory reflex over the smooth pursuit reflex. As a consequence gaze (head plus eye movement) was at times in the opposite direction to the motion of the target. In steady state pursuit of sinusoidal targets, eye movement consisted of a combination of pursuit and vestibulo-ocular reflex eye movements. At frequencies below 0.8 HZ, the vestibular reflex was used at times of minimum target velocity to stabilize fixation whereas during maximum target velocity the head movement was slowed and the smooth pursuit reflex predominated. At 1 HZ and over, there was a failure to suppress the compensatory vestibulo-ocular reflex; however, the saccades of vestibular nystagmus were used to "catch up" the target. There was a preference not to use the head in predictable pursuit.
受试者需要运用头部和眼睛追踪在水平面内随机或呈正弦曲线运动的视觉目标。所有受试者都不喜欢移动头部来追踪随机运动，这显然是因为这种运动会打破注视，导致前庭眼补偿反射比平稳跟踪反射占优势。结果，注视（头部加眼睛运动）有时会与目标运动方向相反。在对正弦目标的平稳跟踪中，眼睛运动由跟踪和前庭眼反射性眼动组合而成。在低于0.8赫兹的频率下，在前庭反射在目标速度最低时用于稳定注视，而在目标速度最高时，头部运动减慢，平稳跟踪反射占主导。在1赫兹及以上频率时，无法抑制补偿性前庭眼反射；然而，前庭性眼震的扫视被用来“追赶”目标。在可预测的跟踪中，受试者倾向于不使用头部。
