Merfeld D M, Young L R, Paige G D, Tomko D L
Man-Vehicle Laboratory, Massachusetts Institute of Technology, Cambridge.
J Vestib Res. 1993 Summer;3(2):123-39.
Three-dimensional squirrel monkey eye movements were recorded during and immediately following rotation around an earth-vertical yaw axis (160 degrees/s steady state, 100 degrees/s2 acceleration and deceleration). To study interactions between the horizontal angular vestibulo-ocular reflex (VOR) and head orientation, postrotatory VOR alignment was changed relative to gravity by tilting the head out of the horizontal plane (pitch or roll tilt between 15 degrees and 90 degrees) immediately after cessation of motion. Results showed that in addition to post rotatory horizontal nystagmus, vertical nystagmus followed tilts to the left or right (roll), and torsional nystagmus followed forward or backward (pitch) tilts. When the time course and spatial orientation of eye velocity were considered in three dimensions, the axis of eye rotation always shifted toward alignment with gravity, and the postrotatory horizontal VOR decay was accelerated by the tilts. These phenomena may reflect a neural process that resolves the sensory conflict induced by this postrotatory tilt paradigm.
在绕地球垂直偏航轴旋转期间及旋转后立即记录三维松鼠猴的眼球运动（稳态为160度/秒，加速度和减速度为100度/秒²）。为了研究水平角前庭眼反射（VOR）与头部方向之间的相互作用，在运动停止后立即将头部倾斜出水平面（俯仰或横滚倾斜在15度至90度之间），使旋转后VOR对准相对于重力发生改变。结果表明，除了旋转后水平性眼震外，如果向左侧或右侧（横滚）倾斜，还会出现垂直性眼震；如果向前或向后（俯仰）倾斜，则会出现扭转性眼震当从三维角度考虑眼速度的时间进程和空间方向时，眼球旋转轴总是朝着与重力对齐的方向移动，并且这些倾斜会加速旋转后水平VOR的衰减。这些现象可能反映了一种神经过程，可以解决这种旋转后倾斜范式引起的感觉冲突。
