Inoue H
Nihon Jibiinkoka Gakkai Kaiho. 1989 Jul;92(7):1093-8. doi: 10.3950/jibiinkoka.92.1093.
The velocity storage mechanism was studied in 12 normal human subjects. For optokinetic stimulation, we principally used step stimuli of 80 deg/sec generated by an Ohm type optokinetic stimulation drum. The charge characteristics of the velocity storage mechanism in the human optokinetic nystagmus were closely approximated by the first-degree delay formula having an average time constant of 26.1 sec. This value was much longer than that reported in other animals. The OKN slow phase eye velocity reached nearly 100% of the stimulus velocity immediately after the onset of stimuli. Then, the velocity gradually decreased during first 30 seconds to approximately 70% of the stimulus velocity, and it increased again to velocity the initial during the next 50-60 seconds of the continuous stimuli. These findings, indicating the characteristics specific in the human OKN may be related to the long time constant in the charge characteristics in human OKN as compared to other animals.
在12名正常人类受试者中研究了速度存储机制。对于视动刺激,我们主要使用由欧姆型视动刺激鼓产生的80度/秒的阶跃刺激。人类视动性眼震中速度存储机制的电荷特性与平均时间常数为26.1秒的一阶延迟公式非常接近。该值比其他动物报道的要长得多。刺激开始后,视动性眼震慢相眼速度立即达到刺激速度的近100%。然后,在最初的30秒内速度逐渐下降至刺激速度的约70%,并在持续刺激的接下来50 - 60秒内再次上升至初始速度。这些表明人类视动性眼震特定特征的发现可能与人类视动性眼震电荷特性中比其他动物更长的时间常数有关。