Pyykkö I, Dahlen A I
Acta Otolaryngol. 1985 Jan-Feb;99(1-2):74-82. doi: 10.3109/00016488509119148.
Intrabeat relationships between duration, amplitude and velocity of the slow phase of nystagmus and between amplitudes of the fast and slow phase of nystagmus were analysed from postrotatory responses in 10 normal subjects, using linear regression analysis. For 5 subjects, the tests were repeated five times. Highly significant correlation was found between velocity and amplitude of the slow phase in 9 of 10 subjects, whereas in one subject it was less significant. All subjects exhibited a significant correlation between velocity and duration of the slow phases. These intrabeat relationships were repeatable and representative for each individual. Highly significant correlation was found between amplitudes of the slow and fast phases of nystagmus in all subjects. No interindividual differences in these variables could be observed. The results indicate that the end-point of the slow phase of vestibular nystagmus in darkness is controlled by positional and durational corollary circuitries. The positional signal in displacement circuitry is probably derived by integration of the velocity signals from the labyrinths. The durational circuitry is presumably more dominant at high nystagmus velocities in order to permit sufficient time for fixation.
运用线性回归分析方法，对10名正常受试者旋转后反应中的眼震慢相持续时间、幅度和速度之间以及眼震快相和慢相幅度之间的心动周期关系进行了分析。对5名受试者重复进行了5次测试。10名受试者中有9名的慢相速度和幅度之间存在高度显著的相关性，而有1名受试者的相关性较弱。所有受试者的慢相速度和持续时间之间均呈现显著相关性。这些心动周期关系具有可重复性且对每个个体都具有代表性。所有受试者的眼震慢相和快相幅度之间均存在高度显著的相关性。在这些变量中未观察到个体间差异。结果表明，黑暗中前庭眼震慢相的终点由位置和持续时间的附属电路控制。位移电路中的位置信号可能是通过整合来自迷路的速度信号而产生的。持续时间电路在高眼震速度时可能更占主导地位，以便有足够时间进行注视。
