Merrison A F, Carpenter R H
Physiological Laboratory, University of Cambridge, England.
Vision Res. 1995 May;35(10):1459-62. doi: 10.1016/0042-6989(95)98725-o.
For the majority of human smooth pursuit eye movements made to a horizontal ramp target of unpredictable direction, the reciprocal of the latency appears to have a Gaussian distribution of the same general form as for saccades to step targets, but with smaller median. There are more latencies shorter than some 100 msec than would be expected from such a distribution: they form a distinct population ("express smooth pursuit responses") whose distribution is similar to that of express saccades. They still occur in the absence of a cue, when the target is unpredictable.
对于大多数针对不可预测方向的水平斜坡目标所做出的人类平稳跟踪眼球运动，潜伏期的倒数似乎具有与针对阶跃目标的扫视运动相同的一般形式的高斯分布，但中位数较小。短于约100毫秒的潜伏期比根据这种分布预期的要多：它们形成了一个独特的群体（“快速平稳跟踪反应”），其分布类似于快速扫视运动的分布。当目标不可预测时，即使没有提示，它们仍然会出现。
